Abstract: The present invention relates to a method for stabilizing ceramide and to a cosmetic composition containing stabilized ceramide and, more specifically, to a method for homogenizing and stabilizing ceramide by self-assembling the ceramide together with ?-sitosterol, resveratrol, and allantoin which are other physiologically active substances using a microfluidic chip and a high pressure homogenizer, and to a technique for using ceramide and nanoparticles containing ?-sitosterol, resveratrol, and allantoin, which are produced by means of the stabilizing method, as a cosmetic material for skin moisturizing, anti-oxidation, skin inflammation relief, skin barrier enhancement, and skin itching relief.

Abstract: The present invention provides a mass spectrometer including a sample introduction part, an ionization part connected to the sample introduction part and configured to ionize the sample introduced from the sample introduction part, an ion lens part including an extraction lens adjacent to the ionization part and a guiding lens configured to guide ion beam extracted from the extraction lens, an interface part between the ionization part and the ion lens part, and a detection part configured to detect the ion beam, wherein the extraction lens includes a first extraction lens adjacent to the interface part and a second extraction lens between the first extraction lens and the guiding lens, each of the first and second extraction lenses has a hollow cone shape, the first extraction lens includes a protrusion protruding from an outer sidewall thereof to the interface part, and an internal space of the second extraction lens includes a first space having a pillar shape and a second space having a cone shape and ext

Abstract: The present invention provides a mass spectrometer includes a sample introduction part, an ionization part connected to the sample introduction part and configured to ionize the sample introduced from the sample introduction part, an ion lens part including an extraction lens structure adjacent to the ionization part and first and second guiding lenses configured to guide an ion beam extracted from the extraction lens structure, and a detection part configured to detect the ion beam, wherein a central axis of the extraction lens structure is a first axis extending in a first direction, a central axis of the first guiding lens is a second axis spaced a first distance from the first axis, and a central axis of the second guiding lens is a third axis spaced a second distance from the second axis.

Abstract: Disclosed is a battery cell, which includes an electrode assembly including a cell body and an electrode tab provided to at least one side of the cell body, a cell case configured to accommodate the electrode assembly therein, an electrode lead coupled to the electrode tab and extending from the cell case, and a tab protection module accommodated in the cell case and configured to cover at least a portion of the electrode tab, the tab protection module including a lead positioning guide and a corresponding positioning guide insert portion adapted to receive the positioning guide insert portion, wherein the positioning guide insert portion is configured to couple to the electrode lead to guide a position of the electrode lead relative to the cell case.

Abstract: Disclosed is a battery cell, which includes an electrode assembly including a cell body and an electrode tab provided to at least one side of the cell body, a cell case configured to accommodate the electrode assembly therein, an electrode lead coupled to the electrode tab and extending from the cell case, and a tab protection module accommodated in the cell case and configured to cover at least a portion of the electrode tab, the tab protection module including a lead positioning guide and a corresponding positioning guide insert portion adapted to receive the positioning guide insert portion, wherein the positioning guide insert portion is configured to couple to the electrode lead to guide a position of the electrode lead relative to the cell case.

Abstract: Disclosed is a battery cell having an electrode tab with an enhanced safety, and a battery module, a battery pack and a vehicle including the same. The battery cell includes an electrode assembly including a cell body and an electrode tab provided to at least one of both sides of the cell body, a cell case configured to accommodate the electrode assembly therein, an electrode lead drawn out of the cell case by a predetermined length and connected to the electrode assembly through the electrode tab, and a tab protection module accommodated in the cell case and configured to cover at least a part of the electrode tab.

Abstract: A notification service provision method for a hearing-impaired person executed on a notification service provision device for a hearing-impaired person, according to one embodiment of the present invention, comprises the steps of: checking whether the sensitivity of a sound received from a surrounding area through each of sound detection modules is equivalent to or greater than a preset vibration generation reference sensitivity; if, as a result of the checking, the sensitivity of the sound received through each of the sound detection modules is equivalent to or greater than the preset vibration generation reference sensitivity, calculating the sensitivity gap of the sound received through each of the sound detection modules; and according to the sound sensitivity gap, notifying a hearing-impaired person of the fact that a sound has occurred by operating at least one of vibration generation modules.

Abstract: According to an embodiment of the present disclosure, a method for providing a notification through a sound alerting apparatus comprises determining whether sensitivities of ambient sounds respectively received through sound sensors are a preset vibration reference sensitivity or higher, calculating a gap between the sensitivities when the sensitivities are the preset vibration reference sensitivity or higher, and operate at least one of vibration generators according to the gap to alert a user to a sound occurrence.

Abstract: Provided are a method of preparing a silica powder coated with an antibacterial agent and a topical dermatological composition including the silica powder, and more particularly, a method of preparing a silica powder coated with an antibacterial agent by forming a silica particle by inducing a reaction between silicon alkoxide and alcohol solvent in the presence of a catalyst and then forming an silver and metallic coating layer on the silica particle, and a method of preparing a topical dermatological composition including the silica powder. The silica powder coated with the antibacterial agent may have high antibacterial capability, and thus, topical dermatological products including the silica powder may be maintained for a long time without using a chemical antiseptic agent that may irritate the skin and cause an allergy in the human body. Even if a small amount of expensive silver (Ag) ion material is used, the silica powder has excellent antibacterial capability and stability.