摘要:
A compound represented by the formula ##STR1## wherein R.sup.1 represents a hydroxyl group, an alkanoyloxy group or a group of the formula ##STR2## in which R.sup.2 represents a hydrogen atom or a lower alkyl group, and R.sup.3 represents a hydrogen atom, a lower alkyl group, an alkanoyl group, a phenyl group, a carbamoyl group or a thiocarbamoyl group, or a salt thereof.The said compound can be prepared by reacting a compound represented by the formula ##STR3## with a compound of the formulaNH.sub.2 --R.sup.1 (III)wherein R.sup.1 is as defined hereinabove, or a salt thereof, and as required, alkanoylating the resulting compound of formula (I) in which R.sup.1 represents a hydroxyl group or an amino group, and as required, converting the resulting compound of formula (I) in which R.sup.1 is the group ##STR4## into its salt, and is useful for the treatment of inflammation, pain or rheumatism.
摘要:
A bulky nonwoven fabric comprises fine fibers forming thin intertwined layers extending between one surface of the fabric and the other surface, that is, the layered fibers run in the direction of thickness of the fabric. The nonwoven fabric of thermoplastic resin is prepared by a melt-blowing process utilizing a drum collector and cooperating nip-roll. If desired the fiber and gas stream may be contacted with fine liquid drops.
摘要:
Optical apparatus for displaying enlargements of graphic copy includes a platform carrying a television camera having an optical pickup lens. The platform is rotatable on a horizontal axis. An arm is secured to the platform and extends downwardly toward the copy. A frame is pivotably secured to the arm to bear on the copy and outline an image scanning field. A mirror is pivotably secured to the platform and is adjustable in an optical path including the lens and frame. The platform has depending legs carrying wheels or casters. A handle on the arm facilitates lifting the frame off the copy and moving the apparatus in a horizontal plane.
摘要:
A reverberation suppression device comprises: an echo canceller that removes an echo component included in an input signal; a howling suppressor that detects occurrence of howling based on a frequency characteristic of the input signal from which the echo component has been removed and attenuates a frequency level of a component of the detected howling; and an initial sound suppressor that detects a sound section of the input signal in which the frequency level of the howling component has been attenuated and suppresses a signal value at a sound start portion of the detected sound section.
摘要:
A reverberation suppression device comprises: an echo canceller that removes an echo component included in an input signal; a howling suppressor that detects occurrence of howling based on a frequency characteristic of the input signal from which the echo component has been removed and attenuates a frequency level of a component of the detected howling; and an initial sound suppressor that detects a sound section of the input signal in which the frequency level of the howling component has been attenuated and suppresses a signal value at a sound start portion of the detected sound section.
摘要:
A silicon object formation target substrate is arranged in a first chamber, a silicon sputter target is arranged in a second chamber communicated with the first chamber, plasma for chemical sputtering is formed from a hydrogen gas in the second chamber, chemical sputtering is effected on the silicon sputter target with the plasma thus formed, producing particles contributing to formation of silicon object, whereby a silicon object is formed, on the substrate, from the particles moved from the second chamber to the first chamber.
摘要:
A substrate having silicon dots wherein at least one insulating layer and at least one group of silicon dots are formed on a substrate selected from a non-alkali glass substrate and a substrate made of a polymer material.
摘要:
A substrate is accommodated in a vacuum chamber provided with a silicon sputter target, a sputtering gas (typically a hydrogen gas) is supplied into the vacuum chamber, a high-frequency power is applied to the gas to form plasma in the chamber, a bias voltage is applied to the target for control of chemical sputtering, and the chemical sputtering is effected on the target by the plasma to form silicon dots on the substrate.
摘要:
There are provided a method and an apparatus which form silicon dots having substantially uniform particle diameters and exhibiting a substantially uniform density distribution directly on a substrate at a low temperature. A hydrogen gas (or a hydrogen gas and a silane-containing gas) is supplied into a vacuum chamber (1) provided with a silicon sputter target (e.g., target 30), or the hydrogen gas and the silane-containing gas are supplied into the chamber (1) without arranging the silicon sputter target therein, a high-frequency power is applied to the gas(es) so that plasma is generated such that a ratio (Si(288 nm)/Hβ) between an emission intensity Si(288 nm) of silicon atoms at a wavelength of 288 nm and an emission intensity Hβ of hydrogen atoms at a wavelength of 484 nm in plasma emission is 10.0 or lower, and preferably 3.0 or lower, or 0.5 or lower, and silicon dots (SiD) having particle diameters of 20 nm or lower, or 10 nm or lower are formed directly on the substrate (S) at a low temperature of 500 deg. C. or lower in the plasma (and with chemical sputtering if a silicon sputter target is present).