摘要:
2-Oxabicyclo[3.3.0]octane compounds represented by the following formula (1) (compound (1)); an optical resolver comprising at least one of the compounds (1); a process for producing the compounds (1) which comprises reacting a compound (2) or compound (3) with an alcohol (5) in the presence of an acid catalyst; a method of separating a diastereomer mixture of a compound (1); and a method of optically resolving an alcohol with the optical resolver. [In the formulae, R1 to R10 each represents hydrogen atom, etc.; R11 represents an alkyl group, etc.; R12 represents a hydrocarbon group, etc.; R13 represents a hydrocarbon group, etc.; and A represents acetyl group, etc.]
摘要:
Pixel areas surrounded by scanning signal lines, video signal lines, and counter signal lines are formed on a liquid-crystal-side surface of a transparent substrate, and include thin-film transistors driven by scanning signals from the scanning signal lines, pixel electrodes to which video signals from the video signal lines are supplied via the thin-film transistors, and counter electrodes spaced apart from the pixel electrodes and connected to the counter signal lines. To prevent leakage current from flowing from the scanning signal lines or the video signal lines to the counter signal lines, a common line is formed around a display area constituted by the pixel areas, the video signal lines and the scanning signal lines are connected to the common line by non-linear elements, and the counter signal lines are connected to the common line by high-resistance elements.
摘要:
Inexpensive, unannealed glass is used as a substrate. The surface of a polycrystalline silicon film doped with boron (B) or phosphorus (P) is oxidized with ozone at a processing temperature of 500° C. or below to form a silicon oxide film of 4 to 20 nm thick on the surface of polycrystalline silicon. On account of this treatment, the level density at the interface between the gate-insulating layer and the channel layer can be made lower, and a thin-film transistor having less variations of characteristics can be formed on the unannealed glass substrate.
摘要:
A method for preparing a stimulable phosphor is disclosed, comprising forming a stimulable phosphor and coating the formed stimulable phosphor with a metal oxide and a silane coupling agent, or a metal oxide and a metal alkoxide. Another method is also disclosed, comprising forming a stimulable phosphor precursor, calcining the formed precursor in the presence of a metal oxide or metal alkoxide, and coating the calcined precursor with a silane coupling agent or metal alkoxide. Further disclosed is a preparation method of a radiation image conversion panel containing the stimulable phosphor.
摘要:
A pager having a telephone number memory, a telephone number retrieval section, a radio transmitter section, and a reply operation control section, which makes it possible to automatically send a reply message back to the sender of a message to the pager, without requiring a complex operation to be performed by the user of the pager. The telephone number memory stores information including telephone numbers of other pagers. The telephone number retrieval section executes retrieval of a telephone number out of the telephone numbers stored in the telephone number memory, in response to a sequence of numbers which is included in the received message. The reply operation control section controls transmission of a reply message to the telephone number which has been determined by the telephone number retrieval section, using the radio transmitter section. With the pager, it is possible to automatically let the sender know that the message has been received by the pager even in situations where dialing and talking are impossible, and telephone charges for the reply messages can be saved since the reply operation is executed accurately and quickly.
摘要:
A stimulable phosphor is disclosed, comprising a rare earth activated alkaline earth metal fluorohalide stimulable phosphor, wherein the rare earth of the phosphor is a rare earth metal selected from the group consisting of Eu, Ce and Gd and the content of the rare earth metal in the surface portion of the particles of the stimulable phosphor being less that in a central portion of said particles. Disclosed is also a radiation image conversion panel comprising a support having thereon a phosphor layer containing the stimulable phosphor.
摘要:
A magnetic recording medium having two magnetic layers is disclosed. The magnetic recording medium has a surface fatty acid content of 0.38 to 2.53 .mu.g per square centimeter and a magnetic layer closest to a support contains ferromagnetic powder of Co-containing FeOx wherein x represents 1.33 to 1.43. It is improved in electromagnetic conversion characteristics, light-shielding property and erasing property, and is suitably used for audio or video recording medium.
摘要:
A communication response control method for distributing, from a specific station with the TTRT value (Target-Token Rotation Time) to be set, the TTRT values for all the other stations and forcibly seating the specific station to an arbitration mode in order to set the TTRT values of the whole network. As a result, the desired TTRT values can be set from any station on the network, dispensing with the trouble of setting the TTRT values for the respective stations, and allowing communication response control in cyclic data transmission and event transmission to be more simplified.
摘要:
A magnetic recording medium is disclosed which is excellent in video and audio signal output as well as in S/N ratio. The recording medium comprises first and second magnetic layers provided on a support in this order from said support and the first magnetic layer has a SFD value of from 0.38 to 0.60 and the second magnetic layer has a SFD value of from 0.30 to 0.45, wherein SFD is defined as follows:SFD=.DELTA.H/Hcwhere .DELTA.H is a half-width of magnetic field at the extreme value of differential coefficient of a magnetic induction-magnetic field hysterisis curve, and Hc is a coercive force of a magnetic material.
摘要:
A magnetic recording medium having a non-magnetic support and provided thereon a magnetic layer containing a ferromagnetic ion oxide and a binder, said ferromagnetic iron oxide containing Si and/or Al at a proportion of 0.10 to 0.25% by weight and methods of manufacturing a magnetic recording medium are disclosed.