Abstract: The present invention relates to an electrode for a hydrogen evolution reaction in an alkaline water electrolysis cell, wherein the electrode comprises: a co-catalyst consisting of a composite containing a Lewis acid-containing material and a metal-organic framework (MOF); and a catalyst surrounded by the co-catalyst. According to the present invention, the water dissociation step of the alkaline hydrogen evolution reaction is promoted, hydrogen gas generated by the hydrogen evolution reaction can easily permeate through the structure, and Nafion is uniformly dispersed by the large pores created by the MOF, thereby implementing the co-catalyst effect across the entire surface while minimizing catalyst poisoning.

Abstract: An electronic device is provided. The electronic device includes a communication unit configured to communicate with an Access Point (AP), a controller configured to find at least one AP through the communication unit, and transmit a query signal to the found at least one AP found through the communication unit to request a connection, wherein the controller sets up at least one of a maximum number of retransmission times of a query signal and a response standby time of the query signal based on at least one of a number of the found at least one AP and a quality of the found at least one AP.

Abstract: An electronic device includes: a first communication module configured to perform a call signal based communication and a second communication module configured to perform a short range communication or wired communication; and a processor configured to control call signal reception processing of the first communication module, wherein when an operation change of a communication channel established based on the second communication module, based on at least one of a movement of an electronic device and a movement of a second electronic device that is connected through the second communication module or has a connection history, the processor allows the electronic device or the second electronic device to receive the call signal.

Abstract: An electronic device includes: a first communication module configured to perform a call signal based communication and a second communication module configured to perform a short range communication or wired communication; and a processor configured to control call signal reception processing of the first communication module, wherein when an operation change of a communication channel established based on the second communication module, based on at least one of a movement of an electronic device and a movement of a second electronic device that is connected through the second communication module or has a connection history, the processor allows the electronic device or the second electronic device to receive the call signal.

Abstract: A wearable electronic device is provided. The wearable electronic device includes a first part including a first sound output module, a second part including a second sound output module, a third part disposed between the first part and the second part, a flexible first connection unit configured to connect a first end of the first part and a first end of the third part, and a flexible second connection unit configured to connect a first end of the second part and a second end of the third part.

Abstract: An electronic device is provided. The electronic device includes a communication unit configured to communicate with an Access Point (AP), a controller configured to find at least one AP through the communication unit, and transmit a query signal to the found at least one AP found through the communication unit to request a connection, wherein the controller sets up at least one of a maximum number of retransmission times of a query signal and a response standby time of the query signal based on at least one of a number of the found at least one AP and a quality of the found at least one AP.

Abstract: An electronic device is provided. The electronic device includes a communication unit configured to communicate with an Access Point (AP), a controller configured to find at least one AP through the communication unit, and transmit a query signal to the found at least one AP found through the communication unit to request a connection, wherein the controller sets up at least one of a maximum number of retransmission times of a query signal and a response standby time of the query signal based on at least one of a number of the found at least one AP and a quality of the found at least one AP.

Abstract: An electronic device is provided. The electronic device includes a communication unit configured to communicate with an Access Point (AP), a controller configured to find at least one AP through the communication unit, and transmit a query signal to the found at least one AP found through the communication unit to request a connection, wherein the controller sets up at least one of a maximum number of retransmission times of a query signal and a response standby time of the query signal based on at least one of a number of the found at least one AP and a quality of the found at least one AP.

Abstract: A wearable electronic device is provided. The wearable electronic device includes a first part including a first sound output module, a second part including a second sound output module, a third part disposed between the first part and the second part, a flexible first connection unit configured to connect a first end of the first part and a first end of the third part, and a flexible second connection unit configured to connect a first end of the second part and a second end of the third part.

Abstract: A wearable electronic device is provided. The wearable electronic device includes a first part including a first sound output module, a second part including a second sound output module, a third part disposed between the first part and the second part, a flexible first connection unit configured to connect a first end of the first part and a first end of the third part, and a flexible second connection unit configured to connect a first end of the second part and a second end of the third part.

Abstract: An electronic device includes: a first communication module configured to perform a call signal based communication and a second communication module configured to perform a short range communication or wired communication; and a processor configured to control call signal reception processing of the first communication module, wherein when an operation change of a communication channel established based on the second communication module, based on at least one of a movement of an electronic device and a movement of a second electronic device that is connected through the second communication module or has a connection history, the processor allows the electronic device or the second electronic device to receive the call signal.

Abstract: Disclosed is an electronic device including a communication interface configured to establish a communication channel with at least one another electronic device, and a processor configured to control a communication connection establishment with the at least one another electronic device through the communication interface, wherein when a specified electronic device is connected to the electronic device, the processor transmits additional connection information of the at least one another electronic device connectible to the at least one another electronic device to which the specified electronic device is already connected, to the specified electronic device.

Abstract: A wearable electronic device is provided. The wearable electronic device includes a first part including a first sound output module, a second part including a second sound output module, a third part disposed between the first part and the second part, a flexible first connection unit configured to connect a first end of the first part and a first end of the third part, and a flexible second connection unit configured to connect a first end of the second part and a second end of the third part.

Abstract: An electronic device is provided. The electronic device includes a communication unit configured to communicate with an Access Point (AP), a controller configured to find at least one AP through the communication unit, and transmit a query signal to the found at least one AP found through the communication unit to request a connection, wherein the controller sets up at least one of a maximum number of retransmission times of a query signal and a response standby time of the query signal based on at least one of a number of the found at least one AP and a quality of the found at least one AP.

Abstract: A multi-SIM terminal having a plurality of transmission keys and a method of operating the same in which the multi-SIM terminal has at least two subscriber identification modules (SIMS) and permits a selection of any particular SIM in the same action in which a communication is requested. The terminal multi-SIM includes at least two mounting units for mounting the at least two SIMS; and at least one transmission key having at least two states corresponding one-to-one to the at least two SIMS for transmission using one of the at least two SIMS.