摘要:
A drug complex characterized in that a residue of a drug compound such as antineoplastic agents and a carboxy(C1-4)alkyldextran polyalcohol obtained by treating a dextran under conditions that enable substantially complete polyalcoholization are bound to each other by means of a spacer comprising an amino acid or a spacer comprising peptide-bonded 2 to 8 amino acids. Said complex is characterized-in that it has excellent selectivity to tumorous sites so as to exhibit high antineoplastic activity and also achieves reduced appearance of toxicity.
摘要:
In an automatic brake booster, a sleeve 18 constituting a valve mechanism 15 has a drive portion 50 disposed on the front side, a valve portion 51 forming a second valve seat 19, a mating portion 52 for mating with a valve seat portion when the drive portion is moved forward, and a conical spring 53 disposed between the drive portion and the valve seat portion and used for separating both members from each other. The conical spring is compressed during the normal braking operation so as to make the opening amount of the second valve seat greater than that during the automatic braking operation. Moreover, a plate plunger 40 for transmitting braking counterforce is relatively displaceably provided and a first member 71 and a second member 71 for mutually contacting a reaction disc 41 is also provided, so that the braking counterforce of the first member is transmitted to the sleeve during the automatic braking operation.
摘要:
A semiconductive rubber roller used in a printer of a photocopying machine, which is an elongated integral body consisting of a shaft of a metal, a semiconductive foamed rubber layer on and around the shaft and a semiconductive solid, i.e. non-foamed, silicone rubber layer on and around the foamed rubber layer. Unexpected improvements can be obtained in the performance and durability of the roller when the silicone rubber forming the solid silicone rubber layer contains low molecular weight organopolysiloxane molecules having a degree of polymerization not exceeding 20 in an amount not exceeding 1.0% by weight and by providing the surface of the semiconductive solid silicone rubber layer with a covering layer which may be a coating layer of a resinous coating composition or a skin layer having a modified nature by a chemical or physical treatment such as ultraviolet irradiation.
摘要:
Disclosed is an improvement in a rubber roller as a developing roller in a electrophotographic printer of which the silicone rubber forming the rubber layer on and around a metallic core mandrel is electrically semiconductive. The printing characteristics and abrasion resistance of the rubber roller to ensure good durability of the rubber roller in printing services can be greatly improved by the irradiation treatment of the rubber surface with ultraviolet light having principal wavelengths of 253.7 nm and 184.9 nm in an irradiation dose of 1.2 to 76 J/cm.sup.2, preferably, in an oxygen-containing atmosphere to form an ultraviolet-hardened surface layer of which the rubber surface has a specified surface rough-ness.
摘要翻译:公开了作为电子照相打印机中的显影辊的橡胶辊的改进,其中在金属芯心轴上和周围形成橡胶层的硅橡胶是半导电的。 通过以主要波长为253.7nm和184.9nm的紫外光照射处理橡胶表面,可以大大提高橡胶辊的印刷特性和耐磨性,以确保印刷服务中的橡胶辊的良好耐久性 1.2至76J / cm 2,优选在含氧气氛中形成紫外线硬化表面层,其中橡胶表面具有特定的表面粗糙度。
摘要:
According to the invention, the booster is not provided with a brake reaction transmission mechanism, and hence a reaction cannot be transmitted to a brake pedal. On the other hand, a pseudo-reaction imparting means is provided to impart a pseudo-reaction of suitable magnitude which depends on the degree of depression of the brake pedal. The pseudo-reaction imparting means is arranged so that when the brake pedal is depressed relatively rapidly, a relatively smaller braking reaction is imparted than during a usual depression. With this arrangement, the transmission of an abnormally high braking reaction to a driver which is experienced in a conventional booster during a quick braking operation due to an operational rag of the booster is avoided. The pseudo-reaction imparting means allows a reaction of a suitable magnitude which depends on the rate of depression of the brake pedal by a driver to be imparted, thus permitting a high output to be obtained with a reduced force of depression during a quick braking operation.
摘要:
To set the drop-out detection level constant in the drop-out detecting circuit used for a magnetic recording apparatus, without regulating the output level of a magnetic recording head and the gain of a preamplifier, the detecting circuit comprises an envelope detection section for detecting the envelope of a reproduced signal; a voltage division section for dividing the output signal voltage of the envelope detection section; and a comparator for comparing the output signal of the voltage division section with the reproduced signal to detect a drop-out of the reproduced signal. Therefore, it is possible to reduce the number of parts and the number of adjustment process to reduce the manufacturing cost thereof. Further, to detect the drop-out portion throughout as defective tape locations, irrespective of the length of the drop-out portion, the detecting circuit further comprises a drop-out start detection section, a drop-out end detection section, and an OR gate.
摘要:
The invention provides a center bearing support which can effectively suppress an inflow of a muddy water or the like into a center bearing side even at a time when a rotating shaft stops, without using a contact type seal such as an oil seal or the like. In a center bearing support in which an inner ring retaining a center bearing is provided in an inner periphery of an outer ring fixed to a vehicle body side via an elastic body made of a rubber-like elastic material, a rib guiding a flow of a muddy water or the like in a circumferential direction is formed on a convex surface constructed by a bellow-like bent portion of the elastic body.
摘要:
A cooling device includes: a cooling fan; a shroud provided at an outer circumferential side of the cooling fan; an inner circumferential wall provided on the shroud and adjacent to the outer circumference of the cooling fan; and an outer circumferential wall provided to surround the inner circumferential wall. An air-flow-direction downstream side end of the outer circumferential wall is positioned at a further downstream position in an air flow direction than an air-flow-direction downstream side end of the inner circumferential wall. An air-flow-direction downstream side end of the cooling fan is positioned at a further downstream position than the air-flow-direction downstream side end of the inner circumferential wall. A ratio between a length of the outer circumferential wall and a length of the inner circumferential wall in the air flow direction is 1.07 or more and 1.81 or less, and a width between the outer circumferential wall and the inner circumferential wall is 15 mm or more and 55 mm or less.
摘要:
A cooling device includes: a cooling fan; a shroud provided at an outer circumferential side of the cooling fan; an inner circumferential wall provided on the shroud and adjacent to the outer circumference of the cooling fan so as to surround the cooling fan; an outer circumferential wall provided to surround the inner circumferential wall. An air-flow-direction downstream side end of the outer circumferential wall is positioned at a further downstream position in an air flow direction than an air-flow-direction downstream side end of the inner circumferential wall. The cooling fan is rotatable within a space provided on a radially inner side of the inner circumferential wall. The air-flow-direction downstream side end of the outer circumferential wall is provided at a further upstream position in the air flow direction than an air-flow-direction downstream side end of the cooling fan.
摘要:
A control unit is provided with, a retaining section that retains a plurality of operation patterns each being a pattern of operation to be periodically repeated by an accelerator, the operation patterns having respective operation conditions adjusted for different emission times of an particle beam, to cause a deflection electromagnet in the accelerator to have an intended magnetic field intensity even under a presence of a hysteresis; a reading section for a plurality of slices of an irradiation target in a depth direction, which reads an irradiation condition for each of the slices; a selection section that selects the operation pattern suitable for each of the slices, on the basis of the read irradiation condition; and a main control section that controls, for each of the slices, the accelerator on the basis of the selected operation pattern and an irradiation device on the basis of the irradiation condition.