摘要:
A method for the growth of a compound semiconductor comprises growing on a silicon substrate a polycrystalline layer of a desired Group III-V compound semiconductor or a crystal layer of the desired Group III-V compound semiconductor having inferior crystallinity, growing on the formed layer at least one layer of the same semiconductor as the desired Group III-V compound semiconductor and at least one layer of a Group III-V compound semiconductor having a lattice constant approximating the lattice constant of the desired Group III-V compound semiconductor, which layers are alternately disposed, and growing on the alternately disposed layers a layer of the desired Group III-V compound semiconductor.
摘要:
A polycarbosilane has a main chain in which silicon atoms and carbon atoms are alternately repeated, and includes a structural unit shown by the following general formula (1), a structural unit shown by the following general formula (2), a structural unit shown by the following general formula (3), and a structural unit shown by the following general formula (4).
摘要:
An insulating-film-forming composition including an organic solvent and a hydrolysis-condensation product which is obtained by hydrolysis and condensation of a component (A) in the presence of a component (B).
摘要:
Disclosed is a silicon-containing film-forming material which contains an organosilane compound represented by the following general formula (1). (In the formula, R1-R4 may be the same or different and represent a hydrogen atom, an alkyl group having 1-4 carbon atoms, a vinyl group or a phenyl group; R5 represents an alkyl group having 1-4 carbon atoms, an acetyl group or a phenyl group; n represents an integer of 1-3; and m represents an integer of 1-2.)
摘要翻译:公开了含有由以下通式(1)表示的有机硅烷化合物的含硅成膜材料。 (式中,R 1 -R 4可以相同或不同,表示氢原子,具有1-4个碳原子的烷基,乙烯基或苯基; R 5表示具有1-4个碳原子的烷基, 乙酰基或苯基; n表示1-3的整数,m表示1-2的整数。)
摘要:
In an outboard motor S, a first drive shaft 31 and a second drive shaft 32 are interlocked by an intermediate gear mechanism 33 including a drive gear 34 mounted on the first drive shaft 31 and a driven gear 35 mounted on the second drive shaft 32. The second drive shaft 32 is supported in an upper bearing 38 and a lower bearing 39 disposed on the upper and the lower side of the driven gear 35. The upper bearing 38 supports an upper end part 32a of the second drive shaft 32 extending upward from the driven gear 35 and the upper bearing 38 is at a vertical position coinciding with that of the drive gear 34. The lower bearing 39 is placed at a position on a lower end part 32b of the second drive shaft 32. The lower end part 32b extends between the driven gear 35 and an input gear 51 included in the output gear mechanism 50. The first drive shaft 31 drives an oil pump 70 for supplying moving parts requiring lubrication and placed in a gear case 13 holding the output gear mechanism 50 interlocked with the second drive shaft 32. The second drive shaft 32 is short and light, the outboard motor can be manufactured at a low manufacturing cost and the oil pump 70 is small.
摘要:
A protector comprising an inner tube, a lid connected to the upper opening of the inner tube through a hinge, and an outer tube for holding the inner tube in its inner cavity part. A blood collecting needle to which a tube is connected is stored in the inner tube. The inner tube comprises an annular seat face which seats on the base end part of a hub formed integrally with the blood collecting needle when the blood collecting needle moves downward. An operation lever extending downward is installed at the side of the lid, and the end part of the operation lever is slightly projected outward. When the blood collecting needle is moved, the inner tube is pulled integrally with the tube by the annular seat face to be slid relative to the outer tube until the end part abuts on the lower end part of an operation hole. Then, the lid is closed and the blood collecting needle is stored in the inner tube.
摘要:
An outboard motor S has: a first drive shaft 31 interlocked with an internal combustion engine, a second drive shaft 32 interlocked with the first drive gear 31, an output gear mechanism 50 driven by the second drive shaft 32, a propeller shaft 17, and a gear case 13 holding the output gear mechanism 50 and the propeller shaft 17 and having a normally submerged gearing holding portion 21. The second drive shaft 32 is disposed rearward of the first drive shaft 31 with respect to a longitudinal direction. The gearing holding portion 21 has a tapered part 21a extending forward from a position corresponding to the second drive shaft 32 and having a front end 21c. The tapered part 21a is tapered toward the front. The disposition of the second drive shaft 32 rearward of the first drive shaft 31 enables forming the gear case 13 in a small size and reduces underwater resistance to the gear case 13.
摘要:
A waterproof lens-fitted photo film unit includes a lens-fitted photo film unit. Between a case body and a rear lid, the lens-fitted photo film unit is contained in a watertight manner. A separation opening is formed in the case body. A separation access chamber has an entrance connected to the separation opening, and closes the separation opening in a watertight manner in a position interior with reference to the case body. The separation access chamber includes a thin wall having a small thickness, and is breakable by a separator tool having a long shape with a small width.
摘要:
A radiation-sensitive resin composition including an alkali soluble resin and a quinonediazide compound is provided. The quinonediazide compound has the formula (1), for example: ##STR1## wherein, R.sup.1 to R.sup.6 are an alkyl, cycloalkyl or aryl group; a and b are an integer of 1 to 3; D.sup.1 and D.sup.2 are independently a hydrogen atom or a 1,2-quinonediazidosulfonyl group, provided that at least one of D.sup.1 is a 1,2-quinonediazidosulfonyl group; A is a bonding such as single bond; and x and y are an integer of 0 to 2. The composition is suitable as a positive resist, which effectively restrains the occurrence of scum, and excellent in developability, pattern shape, sensitivity, resolution and focus latitude.
摘要:
A crawler-belt vehicle is a half crawler vehicle having front wheels furnished with tires, and crawlers on a rear wheel side composed of crawler belts extending between intermediate wheels and rear wheels. The front wheels are larger in diameter than the intermediate wheels and the rear wheels and, hence, have a large ground-contact surface area. Thus, while the vehicle is running on snow, the front wheels are not apt to sink in the snow to a greater extent with the result that the turning characteristic and breakthrough characteristic of the vehicle can be improved. The intermediate wheels may be set to toe in so as to prevent detachment of the crawler belts which would otherwise occur when the sub-beams are slightly flexed or deformed in a lateral outward direction under loads applied thereto while the vehicle is traveling at high speeds on the snow. In order to reduce side slips of the crawler belts, an intermediate line extending parallel to, and passing substantially intermediately between, an axle centerline of the intermediate wheels and an axle centerline of the rear wheels is arranged to meet with a turning center of the right front wheel, and a turning center of the left front wheel at the same point.