Abstract: A transverse-mounted membrane filtration apparatus includes an air diffuser device including a shelf-shaped member and a gas-feeding unit, the shelf-shaped member including a plurality of shelf boards being arranged in a flow path segment at an immediate upstream of an end surface of a membrane element with a predetermined distance from the end surface of the membrane element and covering an entire flow path of the membrane element along a vertical direction, the gas-feeding unit feeding a gas to the raw water for washing the membrane element through a gas-feeding port provided at a bottom portion of a flow path of the shelf-shaped member. Herein a shelf board at a lowermost position of the shelf-shaped member is inclined toward a side of the end surface of the membrane element in a vertically upper direction.

Abstract: A cordless telephone system includes a base unit (100) configured to be connected to a telephone line, and a handset (202) configured to transmit and receipt radio waves to and from the base unit 100 via wireless channel, wherein the handset (202) includes an interface (57; 56, 95) for connection with an information terminal (300), and the handset is configured to set, in a standby state, a reception timing asynchronously with a transmission timing of the base unit, and to establish synchronization with the base unit when the information terminal is to be connected to the telephone line via the handset and the base unit.

Abstract: A transverse-mounted membrane filtration apparatus includes an air diffuser device including a shelf-shaped member and a gas-feeding unit, the shelf-shaped member including a plurality of shelf boards being arranged in a flow path segment at an immediate upstream of an end surface of a membrane element with a predetermined distance from the end surface of the membrane element and covering an entire flow path of the membrane element along a vertical direction, the gas-feeding unit feeding a gas to the raw water for washing the membrane element through a gas-feeding port provided at a bottom portion of a flow path of the shelf-shaped member. Herein a shelf board at a lowermost position of the shelf-shaped member is inclined toward a side of the end surface of the membrane element in a vertically upper direction.

Abstract: A cordless telephone system includes a base unit (100) configured to be connected to a telephone line, and a handset (202) configured to transmit and receipt radio waves to and from the base unit 100 via wireless channel, wherein the handset (202) includes an interface (57; 56, 95) for connection with an information terminal (300), and the handset is configured to set, in a standby state, a reception timing asynchronously with a transmission timing of the base unit, and to establish synchronization with the base unit when the information terminal is to be connected to the telephone line via the handset and the base unit.