Abstract: Provided is an LLC resonant converter capable of achieving high efficiency while preventing saturation of a transformer. The LLC resonant converter includes semiconductor switches connected in series between a positive electrode and a negative electrode of a power source, a transformer including a primary winding, a core, and a secondary winding, a capacitor connected between the negative electrode of the power source and a second end of the primary winding of the transformer, a capacitor, and semiconductor switches connected to each other in series and in parallel with the capacitor, and a secondary side circuit connected to the secondary winding of the transformer, wherein the transformer is a swing choke coil.

Abstract: On a screen of a display unit, all NODEs in a ring network to which a connected node (NODE) belongs are minimized and displayed on a screen of a display unit, and a line connecting NODEs with each other is displayed between respective NODE icons. Display colors of the NODE icon and the line icon are changed depending on presence/absence of a failure. Further, a display color of each object displayed in each window varies in a plurality of stages in accordance with a degree of a failure.

Abstract: A graphics map of an area in which a system is set is displayed on a screen of a display unit, and minimized stations and line connecting between the stations are displayed on the map. Display colors of the station icon and the line icon are changed in accordance with presence/absence of a failure. When each station icon is clicked, a window showing a list of NODEs belonging to that station is opened, and a NODE having a failure and a NODE having no failure are also distinguished from each other by changing the display colors in this window.

Abstract: A multistage immersion type membrane separator in which an air diffuser is disposed under a filtration part immersed in a treatment tank, characterized in that: the filtration part has plural plate-like membrane cartridges arranged in a vertically parallel multistage fashion at spaced intervals for forming a crossflow passage of a predetermined width; and that the air diffuser has a diffuser tube disposed sidewardly that is communicated at its basal end to an air supply source and has at its lower side part plural blowholes, a flushing pipe that is communicated at its basal end to the tip of the diffuser tube and has at its tip an opening serving as an outlet above the diffuser tube, and a flushing valve disposed in the flushing pipe.

Abstract: An air diffuser (2) having a diffuser tube (5) immersed sidewardly in a tank (1), a flushing pipe (9) opening at its tip an outlet (11) at an upper position of the diffuser tube, and a flushing valve (12) disposed in the flushing pipe (9). The diffuser tube (5) is made up of a main pipe (6) communicated at its basal end to an air supply source (8) and communicated at its tip to the flushing pipe (9), and a plurality of branch pipes (7) being communicated to the main pipe (6) and opening at their tip as a blowhole (10) at a lower position of the main pipe (6). During air diffusion, air is supplied from the air supply source (8) with tile flushing valve (12) closed, and the air is diffused from the blowholes (10). During flushing, air is supplied from the air supply source (8) with the flushing valve (12) opened and an intra-tank mixed liquor is sucked from the openings of the diffuser tube (5), thereby flushing the inside of the diffuser tube (5) with the sucked intra-tank mixed liquor.

Abstract: The present invention provides to an access management method and the communications apparatus capable of limiting an access from a monitor and control apparatus to a communications apparatus. In each of transmission apparatuses N1 to Nm, identification information of a monitor and control apparatus requesting an access is first obtained, and a uniquely determined level for each of monitor and control apparatuses WS1 to WSm is determined. A function of the monitor and control apparatuses requesting an access and its operation type are identified and, after that, it is determined on the basis of a predetermined table whether the access can be permitted or not.

Abstract: A multistage immersion type membrane separator (22) in which an air diffuser (24) is disposed under a filtration part (23) immersed in a treatment tank (21), characterized in that: the filtration part has plural plate-like membrane cartridges (26) arranged in a vertically parallel multistage fashion at spaced intervals for forming a crossflow passage of a predetermined width; and that the air diffuser (24) has a diffuser tube disposed sidewardly that is communicated at its basal end to an air supply source (34) and has at its lower side part plural blowholes, a flushing pipe (33) that is communicated at its basal end to the tip of the diffuser tube and has at its tip an opening serving as an outlet (33a) and locating at an upstream of the diffuser tube, and a flushing valve (35) disposed in the flushing pipe (33).

Abstract: An air diffuser (2) comprises a diffuser tube (5) immersed sidewardly in a tank (1), a flushing pipe (9) opening at its tip an outlet (11) at an upper position of the diffuser tube, and a flushing valve (12) disposed in the flushing pipe (9). The diffuser tube (5) is made up of a main pipe (6) communicated at its basal end to an air supply source (8) and communicated at its tip to the flushing pipe (9), and a plurality of branch pipes (7) being communicated to the main pipe (6) and opening at their tip as a blowhole (10) at a lower position of the main pipe (6). During air diffusion, air is supplied from the air supply source (8) with tile flushing valve (12) closed, and the air is diffused from the blowholes (10). During flushing, air is supplied from the air supply source (8) with the flushing valve (12) opened and an intra-tank mixed liquor is sucked from the openings of the diffuser tube (5), thereby flushing the inside of the diffuser tube (5) with the sucked intra-tank mixed liquor.

Abstract: On a screen of a display unit, all NODEs in a ring network to which a connected node (NODE) belongs are minimized and displayed on a screen of a display unit, and a line connecting NODEs with each other is displayed between respective NODE icons. Display colors of the NODE icon and the line icon are changed depending on presence/absence of a failure. Further, a display color of each object displayed in each window varies in a plurality of stages in accordance with a degree of a failure.

Abstract: A graphics map of an area in which a system is set is displayed on a screen of a display unit, and minimized stations and line connecting between the stations are displayed on the map. Display colors of the station icon and the line icon are changed in accordance with presence/absence of a failure. When each station icon is clicked, a window showing a list of NODEs belonging to that station is opened, and a NODE having a failure and a NODE having no failure are also distinguished from each other by changing the display colors in this window.

Abstract: Provided is a submerged membrane cartridge which comprises a supporting plate made of a resin, and a membrane disposed so as to cover the surface of the supporting plate, and is characterized in that the membrane is fused in a plurality of welding allowances formed in multiple, along the entire periphery of the supporting plate; an inner fixing portion that retains the membrane under tension is formed by an inner welding allowance; a water sealing portion that ensures a sealing function through the entire periphery of the membrane is formed by a central welding allowance; and an outer fixing portion that fixes the periphery of the membrane to the supporting plate is formed by an outer welding allowance.

Abstract: In a manifold apparatus having a plurality of functions including a printer function, facsimile function and copier function, facsimile data from a host computer are transferred to a system controller via a printer controller. Information on the destinations for facsimile communication are registered at an image memory. The system controller searches the image memory on the basis of destination data contained in the facsimile data, thereby determining whether the destination has a G3 function or a G4 function. If the destination has a G3 function, the system controller transforms the facsimile data to image data and transmits the image data via a facsimile controller. If a G4 function is available at the destination, the system controller transmits the facsimile data, or code data, without transforming them.

Abstract: An image forming apparatus has two units which are engageable with a photoconductive element and provided with a substantially identical configuration. Various electrophotographic process devices including a developing device and a cleaning device and to be arranged around the photoconductive element are selectively arranged in the two units. The photoconductive element is passed over two rollers such that part of the element forms parallel flat portions. The two units and the photoconductive element are rotatable integrally with each other.

Abstract: A peritrochoid curved surface generating apparatus comprises an outer cylinder rotatably supported on a frame, a first central shaft rotatably journalled in the rotating axis of the outer cylinder, an inner cylinder adjustably fixed within an eccentric opening of the outer cylinder, an inner cylinder central shaft rotatably journalled in an axis of the inner cylinder, a second central shaft rotatably journalled in an eccentric opening of the inner cylinder and supporting a work table, a gear train for transmitting the rotation of the first central shaft to the second central shaft through the inner cylinder central shaft, a cylindrical tool rotatable about its axis and a rocking device supporting the tool and rockable in synchronism with the rotation of the outer cylinder.

Abstract: An image forming apparatus has two units which are engageable with a photoconductive element and provided with a substantially identical configuration. Various electrophotographic process devices including a developing device and a cleaning device and to be arranged around the photoconductive element are selectively arranged in the two units. The photoconductive element is passed over two rollers such that part of the element forms parallel flat portions. The two units and the photoconductive element are rotatable integrally with each other.