摘要:
An output buffer circuit has a data input terminal which receives logic data, load and drive transistors, a driver for selectively turning on the transistors in accordance with the logic value of the logic data, a data output terminal which is connected to a power source terminal of the VDD level through a current path of the load transistor and is grounded through a current path of the drive transistor, and a capacitor connected as a load to the data output terminal. The output buffer circuit further has a transistion detector circuit for generating a pulse signal in response to a change in level of each of address signals, and a preset circuit for supplying, in response to the pulse signal, a charge or discharge current to the capacitor while a voltage at the data output terminal is not at the VDD/2 level.
摘要:
New compounds useful as immunoregulatory and antineoplastic agents are amino-acid derivatives of formula: ##STR1## wherein: n is an integer from 1 to 5;R.sup.1 is a hydrogen atom, an alkyl group, a haloalkyl group, a halogen atom, a mercapto group, an alkylmercapto group, a hydroxy group, an alkoxy group, an acyloxy group, a carboxyl group, an alkoxycarbonyl group, an amino group, an alkyl-substituted amino group, an aryl-substituted amino group, an acylamino group, a haloalkoxycarbonylamino group, an alkanesulphonyl group, a nitro group or a cyano group (and, when n is an integer from 2 to 5, the radicals R.sup.1 may be the same or different);R.sup.2 and R.sup.3 may be the same or different and each is a hydrogen atom or an alkyl group;R.sup.4 is a hydrogen atom, an alkyl group, a cyano group, a cyanoalkyl group, a hydroxyalkyl group, an alkoxycarbonyl group, a carboxyl group, an aryl group, an aralkyl group, a mercaptoalkyl group, an alkylthioalkyl group, or a thioalkyl group (the free bond of the sulphur in said thioalkyl group being joined to the sulphur of another moiety of the same formula); andA is a hydroxy group, an alkoxy group, an amino group, an alkyl-substituted amino group (optionally halogen- or carbamoyl- substituted in the alkyl moiety), a hydrazino group, an alkyl- or aryl- substituted hydrazino group, a hydroxylamino group, an alkoxyamino group or an aralkyloxyamino group;and the pharmaceutically acceptable salts thereof.
摘要:
There is provided a signal propagating device for receiving an input signal at an input end thereof and supplying the input signal to a plurality of memory cells arranged in one row. The signal propagating device includes a word line connected to transmit the input signal and having a plurality of line segments electrically coupled to the memory cells. A preceding one of the line segments is formed to have a larger average width than a succeeding one of the line segments.
摘要:
A conductor pattern consisting of conductor lines is formed in an electronic device by an electron-beam lithography process using a positive resist. After the formation of a positive resist layer on a conductive layer, a linear pattern of latent images is formed by exposure of an electron-beam along the contours of the conductor lines to be formed. The positive resist layer is developed and then serves as a mask against an etchant. The conductive layer is selectively etched to divide it into the patterned conductor lines and remaining conductor portions.
摘要:
An electron beam exposure system for projecting an electron beam onto a medium placed on a continuously moving stage, comprises a correction memory storing correction data for at least one of a field curvature, an astigmatism, and a distortion which changes in accordance with a deflection amount of the electron beam. An amount of actual deflection of the electron beam is obtained from the difference between a position data of the medium and the beam deflection position data with the electron beam then being controlled by the corresponding correction data read from the correction memory according to the amount of beam deflection.
摘要:
A method for producing polyester fibers having excellent dyeability with basic dyes or disperse dyes, which comprises melt-spinning a polyester comprising predominantly (at least 80% by mol) repeating units of ethylene terephthalate and containing 0.5% by mol or more, preferably 1.5 to 5% by mol of an ester unit derived from a dicarboxylic acid or diol containing at least one metal sulfonate group under the condition of being highly oriented so as to give filaments having a birefringence (.DELTA.n) of 0.015 to 0.100 and drawing the resulting filaments at a fixed temperature and in a fixed draw ratio, and the polyester fibers which can be dyed with basic dyes or disperse dyes at a temperature of less than 100.degree. C at a sufficiently high dye adsorption rate to give dyed fibers.
摘要:
An integrated semiconductor structure that has first and second bipolar transistor structures. The first bipolar transistor structure has a doped tank region in contact with a doped tank region located underneath a contacting sinker. The second bipolar transistor structure has a doped buried region that is the same dopant type as its doped tank region. A method for fabricating an integrated semiconductor structure in a bulk semiconductor wafer. A first patterned photomask is used to form a doped buried region and a doped tank region within the first bipolar transistor structure. A second patterned photomask is used to form a doped buried region and a doped tank region within the second bipolar transistor, plus a doped buried region and a doped tank region underneath a contacting sinker adjacent to the first bipolar transistor.
摘要:
An object of the present invention is to provide a novel photobase generator which can sensitively generate a base even by h-ray in place of a conventional 2-nitro-4,5-dimethoxybenzyloxycarbonylamine compound. Disclosed is an N-(α-aromatic group-substituted-2-nitro-4,5-dialkoxybenzyloxycarbonyl)amine compound represented by the following general formula (I). (In the above formula (I), R1 to R9 denote specific groups.)
摘要:
The present invention is regarding plants and plant storage organs thereof in which GLP-1 derivatives are accumulated, and methods of producing them. The transgenic plants and plant storage organs thereof accumulate tandem repeated GLP-1 derivatives cleavable with intestinal digestive enzyme to monomeric molecules and are produced by methods comprising: integrating into vectors linked DNAs which comprise tandem repeated DNAs encoding the GLP-1 derivative with trypsin resistance in which the amino acid in the 26th position is Gln, the amino acid in the 34th position is Asn or Asp, and C-terminal consists of Arg or Lys to produce monomeric molecules; introducing the vectors into plant cells; and redifferentiating the obtained transformants. The edible transgenic plants and plant storage organs are useful for treating diabetes and can be ingested by diabetic patients.
摘要:
An electron gun includes an electron source configured to emit electrons. The electron source includes an electron emission region configured to emit the electrons and an electron emission restrictive region configured to restrict emission of the electrons. The electron emission restrictive region is located on a side surface of the electron source except an electron emission surface on a tip of the electron source and is covered with a different material from the electron source. The electron gun emits thermal field-emitted electrons by applying an electric field to the tip while maintaining a sufficiently low temperature to avoid sublimation of a material of the electron source. The material of the electron source may be lanthanum hexaboride (LaB6) or cerium hexaboride (CeB6). The electron emission restrictive region may be covered with carbon.