Abstract: A dielectric block includes a bottom surface that includes a conductive ground member including an antenna ground surface inclined with respect to the bottom surface. A feed element is disposed at a distance from the antenna ground surface, and constitutes a patch antenna together with the antenna ground surface. A feed line is connected to a feed point of the feed element, and a dielectric member that supports the feed element with respect to the ground member. The ground member is exposed to the bottom surface, on both a lower side and a higher side of a contour line passing through an intersection point of a perpendicular line from the feed point to a virtual plane including the bottom surface and a plane including the antenna ground surface, using the bottom surface as a height reference.

Abstract: A closed impeller (1) includes an impeller main body (2), which is composed of an aluminum alloy and has blades (22) that protrude from a hub (21). A shroud (3) covers the blades. The blades and the shroud are joined together by brazed joints (4). The shroud (3) is formed from a brazing sheet (30) that comprises a core material (31), which is composed of an aluminum alloy, and a filler material layer (320), which is disposed on an outermost surface (33) of the shroud that opposes or faces the blades when the shroud is brazed to the blades.

Abstract: A closed impeller (1) includes an impeller main body (2), which is composed of an aluminum alloy and has blades (22) that protrude from a hub (21). A shroud (3) covers the blades. The blades and the shroud are joined together by brazed joints (4). The shroud (3) is formed from a brazing sheet (30) that comprises a core material (31), which is composed of an aluminum alloy, and a filler material layer (320), which is disposed on on an outermost surface (33) of the shroud that opposes or faces the blades when the shroud is brazed to the blades.

Abstract: A module aroma mixture involves a main aroma component and mixture including hexyl acetate and limonene, and at least one type of compound selected from the group of isoamyl acetate, ethyl 2-methylpentanoate, trans-2-hexen-1-ol, alpha-damascone, cis-3-hexen-1-ol, linalool, ethyl acetate, ethyl 2-methylacetate, nonanal, neral, neryl acetate, geranial, geranyl acetate, citronellol, nerol, geraniol, ethyl propionate, hexanal, ethyl hexanoate, rose oxide, hexanol, cis-3-hexenyl acetate, methyl anthranilate, diethyl malonate, ethyl decanoate, octanal, decanal, ethyl 2-methylpentanoate, 2-tert-butylcyclohexyl acetate, and dimethylphenethylcarbinyl acetate, wherein from 0.05 to 5% by mass of the module aroma mixture is blended relative to a total amount of the module aroma mixture and the main aroma component.

Abstract: A hydrophilic film of the present disclosure contains at least Si, Al, and F. The emission intensity ratio Si/Al of Si to Al is 7.0×10?3 to 3.0×10?1 and the peak emission intensity ratio Si/F of Si to F is 2.0×10?3 to 4.0×10?2, according to glow discharge optical emission spectrometry in the thickness direction of a hydrophilic film 32.

Abstract: A heat-exchanger fin material which has a substrate composed of aluminum and a coating film formed on the substrate. The coating film is composed of a one-layered or two or more-layered coating and has a hydrophilic colored coating on its outermost surface. The hydrophilic colored coating contains an acrylic-modified epoxy resin (A), a melamine resin (B), a perfluoroalkyl group-containing alcohol resin (C), and a pigment (D). The content of the pigment (D) in the hydrophilic colored coating is 1 to 80 mg/m2. The water-contact angle of the hydrophilic colored coating is 20° or less. The elution ratio of the hydrophilic colored coating into running water is 1 mass % or less after an immersion test in which the heat-exchanger fin material is immersed in running water with a flow rate of 5 L/hour for 24 hours. A heat exchanger which includes a fin composed of the aforesaid heat-exchanger fin material.

Abstract: A heat exchanger includes a plurality of fins composed a precoated aluminum sheet (1) having a substrate (2) composed of aluminum, and a hydrophilic-coating film (3) formed on at least one surface thereof. The precoated aluminum sheets (1) have a surface roughness RzL of the hydrophilic-coating film (3) in a rolling-parallel direction X of the substrate (2) and a surface roughness RzLT of the hydrophilic-coating film (3) in a rolling-perpendicular direction of the substrate (2). These surface roughnesses satisfy the following relationships: RzL?1.5 ?m, 0.3 ?m?RzLT?2.5 ?m, and RzL/RzLT?0.9. A contact angle ? of a water droplet (19) with respect to the hydrophilic-coating film (3) is 25° or less, and a sliding angle ? of the water droplet (19) in the rolling-parallel direction X is 20° or less.

Abstract: A flux fluid is disclosed for use in manufacturing a heat exchanger (4) by brazing and joining an aluminum tube (3) and an aluminum fin (2). The flux fluid (101) contains a fluoride-based flux, colloidal silica, and a dispersion medium. The mass ratio of the colloidal silica with respect to the fluoride-based flux is 1/200 to 1/15.

Abstract: A tube shaft for a vacuum cleaner comprising upper and lower tube-shaped parts (11, 14) which by way of a link means (16) are pivotally connected to one another. The link means (16) is provided with a locking mechanism for locking the two tube-shaped parts in one or several angular positions with respect to one another. The tube shaft comprises an operating means (21) arranged at a distance from and above said link means (16). The operating means (21) is connectable to the locking mechanism for activating or deactivating the locking means.

Abstract: A steroid compound represented by the formula ##STR1## which has an excellent aromatase-inhibiting effect and is useful for preventing or treating diseases caused by estrogens, such as breast cancer, uterine cancer and prostatomegaly. This compound has an oxygen or nitrogen atom as the heteroatom at the position A of the ring D and the 7-position (substituent R.sup.1) of the skeleton is substituted by --S--R.sup.2 (wherein R.sup.2 represents hydrogen, lower alkyl which may be substituted by hydroxy, amino or lower alkoxycarbonyl, lower alkenyl, aralkyl, aryl which may be substituted by halogen, amino, di(lower alkyl)amino, lower alkoxy or lower alkyl, acyl, or lower alkoxycarbonyl), --S(O)m--R.sub.3 (wherein R.sup.3 represents lower alkyl; and m represents 1 or 2), or aralkyl.