摘要:
A reverse osmosis membrane separation device includes: a reverse osmosis membrane module; a flow rate detecting unit configured to detect a flow rate of permeate water to output a detected flow rate value corresponding to the flow rate; a pressure pump configured to be driven at a rotation speed corresponding to an input drive frequency and to feed supply water to the reverse osmosis membrane module; an inverter configured to output a drive frequency corresponding to an input current value signal to the pressure pump; and a control unit configured to calculate a drive frequency of the pressure pump by a velocity type digital PID algorithm, such that a detected flow rate value output from the flow rate detecting unit becomes a target flow rate value that is set in advance to output a current value signal corresponding to a calculation value of the drive frequency to the inverter.
摘要:
According to one embodiment, a water treatment system includes: a membrane separation device and a water softening device including a valve unit switching between a softening process in which soft water is obtained by passing raw water through a cation exchange resin bed downward and a regeneration process in which a whole of the cation exchange resin bed is regenerated by generating an opposite flow of a regenerant by supplying the regenerant from both sides of a top portion and a bottom portion of the cation exchange resin bed and collecting a liquid at an intermediate portion of the cation exchange resin bed, and a regenerant supply supplying the regenerant in a volume which gives a regeneration level of 1 to 6 eq/L-R, to a hardness leakage prevention region set in a predetermined depth on the bottom portion of the cation exchange resin bed, in the regeneration process.
摘要:
An information processing apparatus having improved cooling efficiency is disclosed. The information processing apparatus includes a first chassis and a second chassis separated from each other at a prescribed distance, the first chassis accommodating a substrate on which high heat generating parts such as a CPU and a chipset are mounted, and the second chassis accommodating low heat generating and low heat resistance parts. Because of this structure, the first chassis and the second chassis are thermally isolated, and the surface area of the apparatus is increased, thereby improving the cooling efficiency of the apparatus.
摘要:
The present invention provides a plasma processing method in which sideetching and microloading can be suppressed in a plasma processing method of forming trenches with a mask having a minimum opening width of 20 nm or less. The plasma processing method of the present invention is characterized by including the steps of forming trenches by plasma etching, forming a nitride film on sidewalls of trenches using plasma, and forming an oxide film on sidewalls and bottom surfaces of the trenches using plasma.
摘要:
The present invention provides a plasma processing method in which sideetching and microloading can be suppressed in a plasma processing method of forming trenches with a mask having a minimum opening width of 20 nm or less. The plasma processing method of the present invention is characterized by including the steps of forming trenches by plasma etching, forming a nitride film on sidewalls of trenches using plasma, and forming an oxide film on sidewalls and bottom surfaces of the trenches using plasma.
摘要:
An angle adjusting device configured to support an operations panel so that up and down rotation of the operations panel against an apparatus main body can be made in a designated angle range and configured to adjust a rotational angle of the operations panel in up and down directions against the apparatus main body, the angle adjusting device includes i) a fixing member fixed to the apparatus main body, ii) a rotation member where the operations panel is provided, the rotation member being provided to the fixing member so as to be rotated with respect to a designated rotation shaft in the designated angle range, iii) a lock mechanism configured to lock rotation of the rotation member against the fixing member with respect to the rotation shaft, at one or more parts in the designated angle range, by using a force other than a frictional force between the fixing member and the rotation member, and iv) a setting mechanism configured to set a lock-on state and lock-off state of the lock mechanism.
摘要:
An electromechanical device including a key top member (i.e., a push button cover device) used in a push button mechanism. The key top member has a main body, a frame surrounding the main body, and a hinge portion supporting the key top main body. The hinge portion is formed integrally to the frame. The electromechanical device can be used in an operation panel of an image forming apparatus. The hinge and the main body are less susceptible to breakage during transport, installation and maintenance because they are surrounded by the frame.
摘要:
A push button mechanism that includes plural push button members and one or more positioning members. The plural push button members have push portions for receiving an external force. The positioning member includes plural positioning portions corresponding to each shape of the plural push button members. The positioning member prevents engaging each corresponding push button member with each positioning portion that does not correspond to the push button member.
摘要:
A heat dissipating member, a heat dissipating mechanism, and an information processing apparatus capable of improving the cooling efficiency without increasing the size of the apparatus are disclosed. In the information processing apparatus, it becomes possible to effectively transfer heat from a unit such as a memory disposed in an inner space of the apparatus to the outside regardless of the layout position of the unit by using the heat dissipating mechanism fixed to a unit and a heat dissipation surface so that the heat is transferred from the unit to the heat dissipation surface.
摘要:
A housing including a first member, a second member, a first locking mechanism, and a second locking mechanism. The first member is configured to engage with second member. The first locking mechanism locks the first member to the second member, and unlocks in accordance with pressure provided from external of the housing. And the second locking mechanism locks the first member to the second member, and unlocks by rotating either of the first member or the second member at the second locking mechanism.