摘要:
A water-in-oil emulsion explosive characterized by containing an ethylene vinyl acetate copolymer. It has excellent long-term stability. Even when stored under a load for as long as about one year, the explosive is less apt to suffer a decrease in explosive performance and coagulates only slightly in such a degree that it comes to have weakly coherent partial coagulates which can be easily disaggregated. Even after long-term storage, charging with the explosive can be easily conducted with a charger. Since the explosive has excellent water resistance, it is suitable also for blasting in a water hole.
摘要:
A communication control unit performs communications with an external device via a first wireless communication unit of which communication distance is short and which is capable of performing high-speed communications or a second wireless communication unit of which communication distance is long compared with the first wireless communication unit and which is capable of performing low-speed communications. A communication state judging unit judges a communication state of the communications with the external device via the first wireless communication unit or the second wireless communication unit. The communication control unit performs switching between the communications with the external device via the first wireless communication unit and the communications with the external device via the second wireless communication unit based on the communication state judged by the communication state judging unit and/or a transmission data amount to be transmitted to the external device.
摘要:
An information recording/reproducing apparatus for recording or reproducing information on or from a recording medium in response to a command sent from a host computer has a cache memory serving as an intermediate memory and temporarily storing information to be transferred to or from the host computer. In response to an information record command sent from the host computer, completion of writing of information is reported to the host computer at the end of storing record data transferred from the host computer in the cache memory. The record data stored in the cache memory is written on a recording medium independently of data transfer between the host computer and intermediate memory. In response to an information playback command sent from the host computer, it is determined whether playback data requested by the host computer is consistent with unprocessed record data stored in the cache memory. When the playback data is inconsistent with or no duplicate of the unprocessed record data, writing of data from the cache memory onto the recording medium is suspended and processing requested with the information playback command is executed as a top priority.
摘要:
An optical head has a semiconductor laser for emitting light, a collimator lens for converting the light from the laser into a parallel light beam, a semiconductor substrate for reflecting the light beam, and an objective lens for focussing the light beam reflected from the substrate on the optical disk. A 1/4 wavelength plate is situated between the substrate and the objective lens. A beam splitter which transmits the light from the laser and reflects the light returning from the disk is provided between the collimator lens and the substrate. Following the beam splitter, a collective lens, a cylindrical lens and an optical detector are arranged in this order on an optical path for the returning light. A light receiving element for outputting a signal corresponding to the intensity of the light received is formed on the semiconductor substrate, and a polarizing film is formed on the surface thereof.
摘要:
A direct recording device which is incorporated into each of a first apparatus and a second apparatus connecting by signal to the first apparatus, and allows mutual handling of data held by the first and second apparatuses, wherein the direct recording device incorporated into each of the first and second apparatuses includes an identifier setting part configured to set, for data stored in each of internal storage devices of the first and second apparatuses, an identifier for identifying the data, and a transfer part configured to mutually transmit and receive information containing at least one of an identifier and data stored in each of the internal storage devices of the first and second apparatuses.
摘要:
The present invention relates to a gas generant composition that has a high ignitability and combustibility and is capable of quickly responding to an electrical signal for starting combustion, and particularly to a gas generant composition comprising a nitrogen-containing organic compound as a fuel component (A), a metal nitrate and/or a basic metal nitrate (B-1) and a perchlorate (B-2) having a 50 percent particle diameter from 1 to 50 μm as an oxidant component (B), the content of the perchlorate (B-2) in the total mass of the oxidant component (B) is 5 mass percent or more and less than 35 mass percent.
摘要:
A direct recording device which is incorporated into each of a first apparatus and a second apparatus connecting by signal to the first apparatus, and allows mutual handling of data held by the first and second apparatuses, wherein the direct recording device incorporated into each of the first and second apparatuses includes an identifier setting part configured to set, for data stored in each of internal storage devices of the first and second apparatuses, an identifier for identifying the data, and a transfer part configured to mutually transmit and receive information containing at least one of an identifier and data stored in each of the internal storage devices of the first and second apparatuses.