摘要:
A mixture comprising (i) an oxide, hydroxide or oxyhydroxide of aluminum, (ii) an aluminum-containing sulfate, (iii) an oxide or oxyacid of boron or an alkali metal salt thereof and (iv) an alkali metal sulfate is heated at a temperature of 900 to 1200.degree. C. to grow an aluminum borate whisker. In this process, the reaction is advanced apparently in the solid phase, and this process is advantageous over the conventional processes in that the yield is high and the isolation and purification of the reaction product is facilitated.
摘要:
An aluminum borate whisker is prepared by heating and reacting aluminum sulfate and an oxide of boron, an oxyacid of boron or an alkali metal salt thereof in the presence of an alkali metal sulfate and an alkali metal carbonate. In this process, the reaction is advanced apparently in the solid phase, and this process is advantageous over the conventional processes in that the yield is high and the withdrawal of the reaction product is facilitated.
摘要:
Disclosed is a metal-based composite material comprising aluminum or an aluminum alloy combined with a whisker of aluminum borate represented by the chemical formula of 9Al.sub.2 O.sub.3.2B.sub.2 O.sub.3 or 2Al.sub.2 O.sub.3.B.sub.2 O.sub.3. This composite material has excellent mechanical properties such as high tensile strength and high hardness.
摘要:
It becomes possible for a user to set a transmission or reception channel arbitrarily and easily. Each of equipment connected to an IEEE 1394 bus may include a register provided within a RAM 113 to thereby set a transmission or reception default channel. If channels used in the transmission and the reception are not set when the transmission is started, then default channel may be used. When equipment is set to a channel setting mode by operating an operation section 116, a control section 112 may display a channel setting picture on a display section 115. In this state, a user may select a set channel by operating an up-key 116a and a down-key 116b of the operation section 116. Thereafter, when a user operates a “YES” key 116c, the control section 112 may write a selected channel in the above-mentioned register, and ends a default channel setting operation. A user can set the transmission or reception channel arbitrarily and easily.
摘要:
A polyarylene sulfide resin composition having an excellent fluidability and a good moldability is disclosed. The resin composition is useful as a material for an optical pick-up part which has a high reliability and a high tenacity and does not generate deviation of an optical axis with changes in environmental conditions such as temperature and humidity. The polyarylene sulfide resin composition comprises, as main components, a polyarylene sulfide resin, a fibrous filler and a particulate filler, and, optionally, a silane coupling agent and an alicyclic hydrocarbon.
摘要:
It becomes possible for a user to set a transmission or reception channel arbitrarily and easily. Each of equipment connected to an IEEE 1394 bus may include a register provided within a RAM 113 to thereby set a transmission or reception default channel. If channels used in the transmission and the reception are not set when the transmission is started, then default channel may be used. When equipment is set to a channel setting mode by operating an operation section 116, a control section 112 may display a channel setting picture on a display section 115. In this state, a user may select a set channel by operating an up-key 116a and a down-key 116b of the operation section 116. Thereafter, when a user operates a “YES” key 116c, the control section 112 may write a selected channel in the above-mentioned register, and ends a default channel setting operation. A user can set the transmission or reception channel arbitrarily and easily.
摘要:
In order that a digital video (DV) camera function as a WWW server in a network, an image capturing section captures an image of a subject. A DV encoder encodes an image signal input from the image capturing section. A recording and playback section plays back DV data recorded in a DV cassette tape. An IP packet assembling/disassembling section assembles a DV signal input from the DV encoder, a DV signal input from the recording and playback section, or an HTML file input from a WWW server processing section into IP packets, and outputs them to an IEEE 1394 interface. The IEEE 1394 interface transmits, via the network, the IP packets input from the IP packet assembling/disassembling section to a personal computer which accessed the DV camera.
摘要:
In order that a digital video (DV) camera function as a WWW server in a network, an image capturing section captures an image of a subject. A DV encoder encodes an image signal input from the image capturing section. A recording and playback section plays back DV data recorded in a DV cassette tape. An IP packet assembling/disassembling section assembles a DV signal input from the DV encoder, a DV signal input from the recording and playback section, or an HTML file input from a WWW server processing section into IP packets, and outputs them to an IEEE 1394 interface. The IEEE 1394 interface transmits, via the network, the IP packets input from the IP packet assembling/disassembling section to a personal computer which accessed the DV camera.
摘要:
A communication control device includes a determination circuit for determining whether reception of an asynchronous packet from an IEEE 1394 serial bus is allowed or denied by comparing the sum of the size of the asynchronous packet to be received and the size of packets currently stored in a receive FIFO unit with the size of packets which can be stored in the receive FIFO unit. The communication control device further includes an acknowledge generating circuit for generating an acknowledge signal asserting whether reception of the asynchronous packet is allowed or denied based on the determination result of the determination circuit, and the generated acknowledge signal is sent back to the IEEE 1394 serial bus.
摘要:
In order that a digital video (DV) camera function as a WWW server in a network, an image capturing section captures an image of a subject. A DV encoder encodes an image signal input from the image capturing section. A recording and playback section plays back DV data recorded in a DV cassette tape. An IP packet assembling/disassembling section assembles a DV signal input from the DV encoder, a DV signal input from the recording and playback section, or an HTML file input from a WWW server processing section into IP packets, and outputs them to an IEEE 1394 interface. The IEEE 1394 interface transmits, via the network, the IP packets input from the IP packet assembling/disassembling section to a personal computer which accessed the DV camera.