Abstract: The present disclosure relates to a carbon-silicon composite structure including a carbon particle layer having silicon nanoparticles dispersed therein, a method of preparing the carbon-silicon composite structure, a secondary battery anode material including the carbon-silicon composite structure, and a secondary battery including the secondary battery anode material.

Abstract: The present invention relates to a proton-transport vesicle and a method for preparing the same, the proton-transfer vesicle comprising: (a) a single phospholipid bilayer liposome; (b) a rhodopsin protein; and (c) a photosystem II protein, wherein the rhodopsin protein and the photosystem II protein are inserted and located in a bilayer of the liposome. Since the heterologous photosensitive proteins are inserted and located in the bilayer of the liposome, the vesicle has an absorption wavelength band of the whole region of visible light by utilizing absorption bands of different lights of the respective photosensitive proteins. Thus, the restricted efficiency caused by utilizing only a specific wavelength in existing organisms or artificial vesicles was improved, and the wavelength region can be enlarged to the all wavelength ranges of visible light.

Abstract: A method for determining concentration and pressure of respective gas consisting of multi-gas using emitting and receiving of ultrasound includes: measuring a reference ultrasound flight time; measuring ultrasound flight times at plural concentrations, temperatures and pressures; obtaining an ultrasound flight time table comprising ultrasound flight time change values which are differences between the reference ultrasound flight time, which varies according to parameters of concentration, temperature and pressure, and the measured ultrasound flight time; obtaining an ultrasound amplitude table comprising ultrasound amplitude values of a waveform of a predetermined sequence of the received ultrasound waveform at plural concentrations, temperatures and pressures in a state that concentration, temperature and pressure of the target respective gas are parameters; and calculating the concentration and the pressure of the target gas based on performing temperature compensations for the ultrasound flight time change

Abstract: Disclosed are a dye-sensitized solar cell including a polymer/graphene composite gel electrolyte and methods of preparing the dye-sensitized solar cell.

Abstract: A nasal cannula according to an embodiment of the present invention includes: an oxygen supplying portion which forms a space inside in which a nose and a mouth of a user can be disposed and is able to supply oxygen in a state of being put on by the user into the nose of the user; and a mask portion to which the oxygen supplying portion is attached in a detachable manner therein and is configured to be put on a face of the user. Since a space in which a nose and a mouth of a user can be disposed is provided inside the oxygen supplying portion so that a user can put on the nasal cannula in a convenient state and the oxygen supplying portion is put on in a state of being supported by the mask portion, oxygen can be supplied into the nose of the user and at the same time external air can be filtered.

Abstract: The present invention relates to a proton conductive nanocomposite membrane and a method for manufacturing same, the proton conductive nanocomposite membrane having polyhedral oligomeric silsesquioxane (POSS) having a proton donor and POSS having a proton acceptor introduced into an aromatic hydrocarbon polymer membrane having a sulfonyl group. The nano-composite membrane of the present invention has both the POSS having a proton donor and the POSS having a proton acceptor added thereto, and thus protons (cations) that are generated are easily hopped in an ion channel by means of hydrogen bonding, and thus ionic conductivity is increased. In addition, the POSS used in the present invention has a very small size, and thus hardly obstructs proton migration in the ion channel in the polymer membrane, and thus excellent proton conductivity may be enabled.

Abstract: A fluid pumping system may include an electroosmotic pump; and a separation member provided at least one end of the electroosmotic pump, and configured to separate the fluid and a transfer target fluid. The electroosmotic pump may include: a membrane that allows a fluid to move therethrough; and a first electrode and a second electrode which are respectively provided at two opposite sides of the membrane, and each of which is formed of a porous material or has a porous structure to allow a fluid to move therethrough; each of the first electrode and the second electrode may be made of porous carbon only; and an electrochemical reaction of the first electrode and the second electrode may take place as a cation is moved in a direction whereby a charge balance is established.

Abstract: The present invention relates to a proton conductive nanocomposite membrane comprising a fluorinated proton conductive polymer substance introduced with polyhedral oligomeric silsesquioxane (POSS) having a proton donor and polyhedral oligomeric silsesquioxane (POSS) having a proton acceptor, and a method for preparing the same, in which the addition of the very small size POSS having proton donors and POSS having proton acceptors to the nanocomposite membrane increases ion conductivity due to easy hopping of generated protons (cations) within ion channels, thereby realizing excellent proton conductivity while the nanocomposite membrane shows excellent mechanical strength even though the degree of sulfonation of the membrane is increased.

Abstract: The present disclosure relates to a method for preparing metal nanoparticles, and particularly, to a method for preparing metal nanoparticles, the method including reacting a hydrazine-carbon dioxide binded compound with a metal oxide or a metal ion compound.

Abstract: Provided are an ultrasonic imaging apparatus and a method of displaying an ultrasound image. The ultrasonic imaging apparatus may include: a processor configured to acquire a Doppler signal corresponding to a sample volume, divide the Doppler signal into a plurality of sub-Doppler signals, generate a plurality of spectral Doppler signals by performing spectral analysis on each of the plurality of sub-Doppler signals, and generate, from the plurality of spectral Doppler signals, a spectral Doppler signal corresponding to the sample volume; and a display displaying the spectral Doppler signal corresponding to the sample volume.

Abstract: A bioelectronic device for regulating stem cell differentiation, a method for differentiating stem cells using the same, and a method for manufacturing the bioelectronic device. According to the present invention, it is possible to effectively control the differentiation of stem cells at a single-cell level, and to simultaneously perform a free radical inhibition function.

Abstract: Provided are a system and method for automatically recreating personal media through fusion of multimodal features. The system includes a multimodal fusion analyzer configured to analyze semantics of personal media having various forms based on a plurality of modalities and divide the personal media into media fragments which are the smallest units having semantics, a semantic-based intelligent retriever configured to store and retrieve the divided media fragments by considering the semantics, a personal media recommender configured to learn and analyze a profile of a user through modeling the user, and select and recommend a plurality of media fragments wanted by the user among the media fragments retrieved by the semantic-based intelligent retriever, and a personal media creator configured to create new personal media using the plurality of media fragments recommended by the personal media recommender according to a scenario input by the user.

Abstract: Disclosed is a transistor including a substrate, first and second type wells in contact with each other on the substrate; and a breakdown voltage improving region including vertical high concentration doped regions according to first and second types vertically in contact from upper surfaces of the first and second type wells to an upper surface of the substrate in a portion where the first and second type wells are in contact with each other.

Abstract: Provided is a file management/search system based on a block chain capable of identifying a data name and an owner of a data. In the file management/search system, a generated data is stored, and a data name together with an IP address and port number of a node in which the data is stored is transmitted in a form of a transaction to other nodes. The nodes receiving the transaction generates blocks on the basis of the transaction and links the blocks to the block chain, so that the data name and the owner information of the owner generating the data are shared by all users. Since this information is recorded in the block chain and all the nodes share the same information, a malicious node which is to arbitrarily change contents needs to change the contents of the block chain held by all the nodes.

Abstract: The present invention relates to a polymeric hollow fiber membrane and a carbon molecular sieve hollow fiber membrane, both of which have excellent gas separation performance, and processes for preparing the same. Specifically, the present invention relates to a hybrid polymeric hollow fiber membrane that comprises a glassy polymer containing fluorine and a ladder-structured polysilsesquioxane, a hybrid carbon molecular sieve hollow fiber membrane prepared by pyrolysis thereof, and processes for preparing the same. The hybrid polymeric hollow fiber membrane and the hybrid carbon molecular sieve hollow fiber membrane according to the embodiments of the present invention are excellent in gas flux and selectivity and can have a large surface area per unit volume. Thus, they can be advantageously used for separating gases with a high energy efficiency on a large scale.

Abstract: Provided is a network connection control method based on a user context including: collecting a sensing data including an external noise at every predetermined period, determining a user situation by using the sensing data, and recording information on the user situation in user context information; and selectively connecting a predetermined network so as to correspond to the user situation among a plurality of wireless networks every time when the user context information is changed.

Abstract: A data driver includes a digital to analog converter configured to receive a reference gray voltage and image data, and configured to generate gray voltages corresponding to the image data, and an output buffer including a plurality of buffer circuits connected to an output terminal of the digital to analog converter, and configured to selectively receive one of the gray voltages.

Abstract: Disclosed are an N-doped three dimensional carbon nanostructure, a method of preparing the N-doped three dimensional carbon nanostructure, and a supercapacitor electrode including the three dimensional carbon nanostructure.

Abstract: A method for constructing a codebook in a multiple-antenna wireless communication system and an apparatus therefor are disclosed. Specifically, constructing a codebook in a multiple-antenna wireless communication system comprises the steps of: receiving parameters for constructing a codebook from a base station; and constructing a codebook using the parameters for constructing the codebook, wherein the parameters for constructing the codebook may include a phase value (?) of a first code vector forming the codebook, a phase difference (?) between code vectors that are adjacent to one another within the codebook, and the number of bits (?) that is required when feeding back a code vector selected thin the codebook.

Abstract: The present invention relates to a method for manufacturing an amalgam electrode, an amalgam electrode manufactured by the method, and a method for electrochemical reduction of carbon dioxide using the amalgam electrode.