摘要:
A clean room which can be used suitably when it is desired to keep the air inside a clean room at an ultrahigh purity. This clean room is equipped with a ceiling (23), a floor (28), an indoor space (30) between said ceiling and said floor, air supply means (24) for supplying an ultrahigh-purity air into the indoor space and air discharge means (40) for discharging the air supplied into the indoor space. The indoor space is divided into a first region (B) of which a high purity is required and a second region (A) which is adjacent to the first region and of which a purity further higher than that of the first region is required. The air supply means is equipped with air blow ports (26) which are disposed on the ceiling of the second region and blows out the air downward, and the air discharge means is equipped with first air suction ports (25) which are disposed on the ceiling of the first region and sucks the air upward. Part of the clean air blown downward from the air blow ports is taken into the first air suction ports so that an air stream having a large lateral velocity component flowing from the second region generates inside the indoor space and prevents intrusion of dust from the first region to the second region.
摘要:
In a building having electromagnetically shielded sections formed by using electromagnetic shielding members as structural members for outer walls, floors and so forth, a zone partitioned with a bearing wall structure having walls such as a fire wall (12) reaching a floor slab is formed as a unit of the electromagnetically shielded space, thereby eliminating the need for an additional process of forming a rising portion or a partition formed on a partition wall formed below a double-ceiling. At the connection between the floor slab and the wall, a space formed therebetween is filled with asbestos (42), and the floor slab and the wall are integrally connected electrically, and a space between a column (51) and a floor decking plate (52) is covered with a shielding plate (54) while the floor slab is fabricated in an ordinary manner, thus forming electromagnetically shielded sections. A core 104 is disposed between office rooms (102, 103), and doors in the partition wall provided between these rooms are formed with an electromagnetic shielding structure so that an electromagnetically shielded zone is formed for each room by shutting off propagation of noises from the core section and preventing interference between electric waves used in adjacent stories.
摘要:
A system for re-emitting electromagnetic waves within an electromagnetically shielded space (1) and for performing communication between the inside and the outside of the shielded space in a particular frequency band, has a receiver (2,3) for an outside electromagnetic wave, and a transmitter (4,5) for amplifying and thereafter re-emitting the amplified signal within the electromagnetically shielded space (1). A paging system or a mobile radio telephone system using electromagnetic waves can be thereby utilized even in an electromagnetically shielded space (1) where the level of received waves would otherwise be insufficient.
摘要:
A method of supplying scents to a room of a motor-car. In this method, a scent holder is provided within the room of the motor vehicle, the scent holder containing scents bearing materials for emitting different scents useful for a driver of the motor vehicle. Reference data for respective driving conditions of the motor vehicle are stored, the reference data indicating need for supply of respective scents. After storing the reference data, a driving condition of the motor vehicle is detected for producing an electric drive signal representing the driving condition. The drive signal thus produced is compared with a corresponding reference datum for determining whether or not the detected driving condition requires one of the scents contained in the scent holder. When the detected driving condition requires the one scent, one scent bearing material containing the one scent is selected. Then, the one scent from the one scent bearing material is supplied to the room of the motor vehicle.
摘要:
Method and machine for constructing a vertical shaft in soft rock by means of an excavator (4), comprising the steps of setting the working face of the shaft under water with a constant level so that the lower end of the excavator (4) is kept in the water, spraying concrete towards the shaft well exposed above the water level to form a lining thereon, mixing water and muck excavated from the working face to obtain a slurry and conveying the slurry out of the shaft.
摘要:
A bore hole scanner includes light projecting means (11 - 13, 5) for projecting a light beam toward a bore hole wall surface, a conical mirror (4) arranged coaxially with respect to a sonde (14) for condensing light reflected from the bore hole wall surface, image forming means (3) arranged in front of the conical mirror (4), photoelectric transducing means (2-1) for converting a light signal into an electric signal, optical fibers (2-2) for introducing an image, which is formed on concentric circles by the image forming means (3), to the photoelectric transducing means (2-1), data processing means for scanning and extracting signals from the photoelectric transducing means (2-1), and for generating and processing image data indicative of the bore hole wall surface, and sonde position detecting means (8 - 10) for detecting the orientation and position of the sonde. Rotating portions are dispensed with by using the conical mirror and optical fibers, and a linear CCD array can be used as the photoelectric transducing means.