摘要:
A double-base granular propellant consisting mainly of nitroglycerine and nitrocellulose, said nitrocellulose being formed into a three-dimensional structure by the crosslinking reaction of a polyfunctional isocyanate, is disclosed. The propellant is superior to conventional double-base granular propellant in the shooting performance, and can be obtained by a simple solvent-granulation process.
摘要:
A capsulated explosive composition comprising a high molecular weight compound forming the capsule wall and an explosive forming the core is high in power and low in sensitivity and vapor pressure, and can be easily handled.
摘要:
A double-base granular propellant consisting mainly of nitroglycerine and nitrocellulose, said nitrocellulose being formed into a three-dimensional structure by the crosslinking reaction of a polyfunctional isocyanate, is disclosed. The propellant is superior to conventional double-base granular propellant in the shooting performance, and can be obtained by a simple solvent-granulation process.
摘要:
An optical recording medium which comprises a substrate and a recording layer provided on the substrate by using an organic dye compound having absorption maximum in a region with wavelengths longer than that of a writing light used, and which records information by allowing to irradiate the recording layer with the writing light to act on the organic dye compound to form a pit on the substrate.
摘要:
The objects of the present invention are to provide semiconductor layers for obtaining solar cells having a relatively high energy conversion efficiency, solar cells using the same, and their production methods and uses; all of which are solved by providing semiconductor layers that are used in solar cells and constructed by semiconductor particle groups having a plurality of peaks in particle size distribution, solar cells using the same, and their production methods and uses.
摘要:
An outboard motor is provided with a cleaning apparatus for cleaning a cooling water passage, in which the cooling water passage is formed and an engine is covered by an engine cover, the cleaning apparatus including a connection device to which one end of a cleaning water tube, which is connected at another end thereof to the cooling water passage of the engine, is connected and a cleaning water hose is connectable to the connection device from an external side thereof. The connection device comprises a grommet mounted to the engine cover and a connector assembly mounted to the grommet. The connector assembly has a double-tube structure having an inside connecting portion and an outside connecting portion, the inside connecting portion having a union structure to which a city hose or garden hose is connected and the outside connecting portion having an outer peripheral portion to which a screw portion is formed.
摘要:
A transmission device is provided for transmitting an output of a drum motor to a drum on which a sheet of paper is mounted, for driving the drum. The transmission device has a plurality of pulleys and a timing belt. Each of the pulleys has a plurality of grooves to be engaged with projections of the timing belt. The number of the grooves is determined to times of an integer number.
摘要:
An optical recording medium is provided with: a light transmissive substrate; a recording film formed of an organic dye with 2,2,3,3-tetrafluoro-1-propanol having pH of not less than 6.0 as a solvent, on a surface of the substrate; a reflective film formed on a surface of the recording film; and a protection film formed on a surface of the reflective film.
摘要:
A planar display device having a fast display reaction time and which can have a large screen size but which is thin and light in weight. A face plate is provided which contains fluorescent materials sensitive to three different wavelengths of invisible ultraviolet rays and which emit light in red, green and blue colors in response to stimulation by rays of the three wavelengths. The three fluorescent materials may be stacked together in layers or mixed in a single layer with a binder, and a wavelength-converting layer may be employed.
摘要:
A reflectance of an optical recording medium provided with a light transmission substrate on which a recording film containing a dye material is formed is controlled or regulated by providing a recording film which is formed by a method comprising the steps of preparing a solution containing only a non-aggregated portion of a dye material and a solution containing only an aggregated portion of a dye material, mixing both the solutions with a predetermined mixing ratio to prepare a mixture solution and coating the mixture solution on a surface of a light transmission substrate to form a recording film of an optical recording medium having a predetermined reflectance by changing the mixing ratio. The aggregated portion of the dye material is a metal phthalocyanine aggregated material represented.