Abstract:
A bioreactor for suspended cells is provided. The bioreactor for suspended cells comprises: a housing which is formed in the shape of a container having a culture space with a predetermined volume, and which comprises pots for seeding; a support assembly comprising a plurality of supports arranged at intervals in multiple stages in one direction of the housing; at least one gas inlet penetrating the housing by a predetermined area; and a porous member for covering the gas inlet, wherein the culture space comprises a medium storage space filled with a predetermined amount of a medium so that all the plurality of supports are submerged therein, and the medium storage space can comprise a plurality of cell growth spaces divided through the plurality of supports arranged at intervals in multiple stages.
Abstract:
An insulation sheet for a display light source is provided. An insulation sheet for a display light source according to an embodiment of the present invention is provided on an opposite surface opposite to a circuit board mounting surface on which multiple LED elements configuring a light source of a display are mounted while being spaced a predetermined interval apart from each other, so as to block heat generated from the multiple LED elements from being transmitted in a direction perpendicular to the opposite surface. Accordingly, the insulation sheet can minimize vertical transfer of received heat as well as reducing the heating level of the multiple LED elements, and is thus advantageous in minimizing or preventing heat transfer in an undesirable direction and/or of an undesirable amount.
Abstract:
A filter medium is provided. The filter medium according to an embodiment of the present invention comprises a second support body and a nanofiber web layer which are sequentially stacked on each of both surfaces of a first support body, and is a filter medium having a flow path through which a filtrate filtrated in the nanofiber web flows in the direction of the first support body, wherein the nanofiber web has a basis weight of 30 g/m2 or less, the first support body has a basis weight of 250 g/m2 or more, and a thickness of 90% or more of the total thickness of the filter media. Accordingly, even in a backwash process performed at high pressure, as the shape, structural deformation, and damage of the filter medium can be minimized, the use period can be extended. In addition, as the flow path is smoothly secured at high pressure applied at the time of filtration and/or backwashing, the filtration water is quickly discharged to the outside from the inside of the filter medium or the backwashing efficiency is very excellent, and accordingly it is possible to be applied in various ways in various water treatment fields.
Abstract:
Provided is a flexible electromagnetic wave shielding material. An electromagnetic wave shielding material according to an embodiment of the present invention includes a conductive nanofiber web having a nanofiber web formed of a nanofiber and including multiple pores and a metal layer covering at least a portion of the nanofiber disposed on a surface portion of the nanofiber web, wherein a metal particle is provided in at least some of the pores; and an elastic member brought in contact with one surface of the conductive nanofiber web of the metal layer. Thus, the electromagnetic wave shielding material is so excellent in elasticity that the electromagnetic wave shielding material may be freely changed in shape, and can be attached to and brought in complete contact with a surface where the electromagnetic wave shielding material is intended to be disposed even if the surface has a curved shape such as an uneven portion or a stepped portion, thus exhibiting excellent electromagnetic wave shielding performance. Also, it is possible to prevent deterioration of the electromagnetic wave shielding performance despite various shape changes. Furthermore, even if parts are provided in a narrow area at a high density, the flexible electromagnetic wave shielding material can be brought in close contact with mounted parts by overcoming a tight space between the parts and a stepped portion. Thus, the present invention may be easily employed for a light, thin, short, and small or flexible electronic device.
Abstract:
A liquid drug-filtering filter medium is provided, which can include a nanofiber web having a three-dimensional network structure for filtering foreign substances included in a liquid drug. According to the embodiment, the occurrence of differential pressure when drawing in and filtering a liquid drug is minimized, and thus the liquid drug may be quickly drawn into a syringe cylinder within a short time and by applying small force, and at the same time, the filtration rate of foreign substances in the liquid drug is very outstanding. A method for producing the liquid drug-filtering filter medium is also provided, which enables the very easy adjustment of a pore structure of the filter medium or the diameters of the pores in order to enable the pore structure to minimize the occurrence of differential pressure or change the differential pressure to a target level.
Abstract:
Provided is a wearable device and a method of manufacturing the same. The wearable device includes: a wearable flexible printed circuit board having a circuit pattern formed on a base substrate having flexibility, air-permeability, and waterproofness; and a functional module mounted on the wearable flexible printed circuit board.
Abstract:
Provided is a sound device having a membrane attached between a case and an electro-acoustic transducer using an adhesive foam tape, thereby enabling the prevention of a deterioration of vibration amplitude-related properties of the membrane, and the prevention of a distortion of sound that is being delivered. The sound device includes: a waterproof air-permeable membrane permeating gas entering and exiting an electro-acoustic transducer disposed inside the sound-transmitting hole and blocking the inflow of water; and a first adhesive foam tape having one side adhered to the membrane and the other side adhered to the case to adhere an edge of the membrane to a periphery of the sound-transmitting hole of the case. The first adhesive foam tape is provided with a plurality of pores formed on adhesive surfaces of the one side and the other side respectively bonded to the membrane and the case and filled with an adhesive material.
Abstract:
Provided are a deionization flexible composite electrode, a method of manufacturing the deionization flexible composite electrode, and a deionization apparatus using the same. The deionization flexible composite electrode includes: a porous substrate having fine pores; and a conductive film portion that is formed on one surface or both surfaces of the porous substrate. The method of manufacturing a deionization flexible composite electrode comprises: preparing a porous substrate having fine pores; and depositing a conductive material in the porous substrate to thus form a conductive film portion on one surface or both surfaces of the porous substrate.
Abstract:
Provided are a capacitive deionization electrode module, a method of manufacturing the same, and a deionization apparatus using the same. The capacitive deionization electrode module includes: a conductive support that is formed by injecting and fixing carbon-based electrode powders into and to fine pores of a porous substrate; and a coating layer coated on one surface of the conductive support, to thereby implement a current collector for the deionization apparatus having ultra-thin, slim, and excellent flexible features.
Abstract:
Provided are a polymer electrolyte, a lithium secondary battery using the same, and a manufacturing method thereof, in which a gel polymer electrolyte is formed from a monomer for forming a gel polymer by a rapid polymerization reaction, when using a porous nanofiber web as an electrolyte matrix, and injecting an organic electrolytic solution formed by mixing the gel polymer forming monomer and a polymerization initiator, to induce an addition polymerization reaction, but the porous nanofiber web maintains a web-like shape. The polymer electrolyte includes: a separator made of a porous nanofiber web having a plurality of nanofibers; and a gel polymer portion impregnated in the porous nanofiber web. the gel polymer portion is formed by impregnating an electrolytic solution containing a non-aqueous organic solvent, a lithium salt solute, a gel polymer forming monomer, and a polymerization initiator in the porous nanofiber web and polymerizing the gel polymer forming monomer.