摘要:
In a CATV-LAN in which a plurality of modems transmit messages asynchronously from respective terminal apparatuses to an upstream transmission path and receives messages from a downstream transmission path, when a modem is transmitting a message, the resultant data which are received by that modem are compared with data of that message which have already been transmitted, and transmission is interrupted if the received data do not correctly match the transmitted data, due to conflict with data transmitted by some other modem. Each message contains information specifying its length, and when a non-transmitting modem receives a set of data whose actual length does not match a length value which is specified within the data, the data are discarded. It thereby becomes unnecessary to provide beat detection circuits in the modems, for detecting data conflict, so that system cost can be reduced.
摘要:
A dense substrate for a solid oxide fuel cell, comprising: a base portion, support portions and fixing portions all of which project from the base portion so as to be arranged sequentially in one direction; grooves formed between the support portions and the fixing portions or between the support portions; and mount portions which are provided on the support portions between the fixing portions for mounting and affixing at least cell sections thereon. A solid oxide fuel cell is easily manufactured at a reduced cost by arranging a plurality of cell sections and, if required, plate sections, on the mount portions of the above dense substrate; affixing the cell sections and, when used, plate sections, onto the mount portions with an insulating bonding agent; and joining adjacent cell sections together with interconnections.
摘要:
Disclosed is a nonvolatile semiconductor memory having a high access speed and high reliability. The memory includes a source diffusion region extending in one direction, a pair of first word lines arranged in parallel with the source diffusion region, such that the source diffusion region is interposed therebetween, drain diffusion regions disposed to face the source diffusion region, with the first word lines interposed therebetween, bit lines electrically connected to the drain diffusion regions and arranged to cross the first word lines, a channel region formed below each of the first word lines and positioned between the source diffusion region and the drain diffusion region, a floating gate electrode formed in an electrically floating manner above the channel region and below one of the pair of the first word lines, and a second word line formed above the source region and positioned between and electrically connected to the pair of first word lines.
摘要:
A semiconductor device is fabricated by forming a gate structure including a gate insulating film and a gate electrode film formed thereon on a surface of an element formation region defined in a surface of a semiconductor substrate by an element isolation region. Then, an impurity having a conductivity type opposite to that of the substrate is doped by using the gate structure as a mask, thereby forming first and second semiconductor regions in the element formation region. An insulating wall is formed on a side wall of the gate structure, and an insulating film is deposited on an entire surface of the resultant semiconductor substrate structure. A portion of the insulating film which corresponds to a step portion formed by surfaces of the wall and the element formation region is selectively etched to form first and second contact holes. Finally, a wiring layer is formed on the remaining insulating film so as to electrically connect to the first and second semiconductor regions through the first and second contact holes.
摘要:
In order to quicken switching of indices and reduce the time required for display after switching, a mobile phone includes a video content specifying portion to specify at least one video content, an index element generating portion to generate a thumbnail for a video content when accepting a generation instruction and to stop generation of the thumbnail when accepting a cancellation instruction, an index element generation requesting portion, in response to the event that a video content is specified by the video content specifying portion, to output a generation instruction including identification information identifying the specified video content to the index element generating portion, and a cancellation instructing portion to output a cancellation instruction to stop generation of the thumbnail for the already specified video content when a new video content is specified before completion of generation of the thumbnail for the already specified video content.
摘要:
A rubber composition for use in tire treads including 100 parts by mass of a diene rubber and from 70 to 100 parts by mass of silica, wherein the diene rubber includes from 50 to 90 mass % of a terminal-modified styrene-butadiene rubber having a hydroxy group on an end of the molecule, and from 10 to 25 mass % of a butadiene rubber; the silica has a BET specific surface area of from 45 to 550 m2/g, a CTAB specific surface area of from 40 to 525 m2/g, a particle size distribution width Ld((d84−d16)/d50) of at least 0.91, and wherein V(d5-d50)/V(5-d100) is at least 0.66; and a durometer hardness of the rubber composition when measured at 20° C. is from 70 to 80.
摘要:
An ink composition for ink jet printing is provided which gives a cured object excellent in adhesion to metallic plates, resistance to etchants, and alkali removability and can be stably ejected with an ink jet apparatus. The ink jet composition for etching resists has a viscosity at 25° C. of 3-50 mPa s and includes monomers comprising: either a polymerizable phosphoric ester compound represented by general formula (I); a polyfunctional monomer having two or more ethylenic double-bond groups per molecule and having no phosphoric ester group, the content of the ethylenic double-bond groups being 4×10−3 to 8×10−3 mol/g; and a monofunctional monomer having one ethylenic double-bond group per molecule and having neither phosphoric ester group nor carboxy group. In the formula, X represents C1-3 alkylene, Y represents C2-3 alkylene, and R represents hydrogen or methyl.
摘要:
A rubber composition for use in tire treads including 100 parts by mass of a diene rubber and from 70 to 100 parts by mass of silica, wherein the diene rubber includes from 50 to 90 mass % of a terminal-modified styrene-butadiene rubber having a hydroxy group on an end of the molecule, and from 10 to 25 mass % of a butadiene rubber; the silica has a BET specific surface area of from 45 to 550 m2/kg, a CTAB specific surface area of from 40 to 525 m2/kg, a particle size distribution width Ld((d84−d16)/d50) of at least 0.91, and wherein V(d5-d50)/V(d5-d100) is at least 0.66; and a durometer hardness of the rubber composition when measured at 20° C. is from 70 to 80.
摘要:
A parameter selection section selects one from a plurality of image synthesis parameters stored in a parameter storage section according to an output of a vehicle state detection section. An image synthesis section reads out camera images from frame memories according to the selected image synthesis parameter and generates a synthesized image showing a state of vehicle surroundings. A moving object detection section detects, in the thus generated synthetic image, a moving object region estimated as a region where a moving object is present.
摘要:
An image forming apparatus including a cartridge that has a photosensitive drum and can be attached to and detached from a main body of the image forming apparatus, an optical device that has a cover glass through which light emitted toward the photosensitive drum passes, a cleaning member that can move from a cleaning start position to a cleaning end position for cleaning the cover glass, and a lock member that prevents the cleaning member from moving. Before the cartridge is attached, the lock member prevents the cleaning member from moving in the longitudinal direction of the cover glass. During the attachment of the cartridge, the cartridge engages with the lock member and unlocks the cleaning member and enables the cleaning member to move from the cleaning start position.