摘要:
A radiation-sensitive resin composition comprising an alkali-soluble novolak resin and a 1,2-quinonediazide compound, wherein the alakli-soluble novolak resin comprises a mixture of:95-50 parts by weight of Resin A having a standard polystyrene-reduced weight-average molecular weight of 2,000-20,000 [Resin A is at least one resin selected from the group consisting of a resin obtained by polycondensation of m-cresol and at least one phenol represented by the structural formula (I) or (I'): ##STR1## wherein m is 2 or 3, with at least one aldehyde and a resin obtained by polycondensation of m-cresol, p-cresol and at least one phenol repreented by the above structural formula (I) or (I') with at least one aldehyde] and5-50 parts by weight of Resin B having a standard polystyrene-reduced weight-average molecular weight of 200-2,000 [Resin B is a resin obtained by polycondensation of at least one phenol represented by the structural formula (II): ##STR2## wherein n is 0, 1, 2 or 3, with at least one aldehyde]. In the resin composition, the mixture of Resin A and Resin B may further contain Resin C which is an ester of Resin B with a 1,2-quinonediazidesulfonic acid. The radiation-sensitive resin compopsition is suitable for use as a positive type resist having high sensitivity, excellent developability, high resolution and excellent heat resistance.
摘要:
A radiation-sensitive resin composition comprising an alkali-soluble novolak resin and a 1,2-quinonediazide compound, wherein the alakli-soluble novolak resin comprises a mixture of: 95-50 parts by weight of Resin A having a standard polystyrene-reduced weight-average molecular weight of 2,000-20,000 �Resin A is at least one resin selected from the group consisting of a resin obtained by polycondensation of m-cresol and at least one phenol represented by the structural formula (I) or (I'): ##STR1## wherein m is 2 or 3, with at least one aldehyde and a resin obtained by polycondensation of m-cresol, p-cresol and at least one phenol represented by the above structural formula (I) or (I') with at least one aldehyde! and 5-50 parts by weight of Resin B having a standard polystyrene-reduced weight-average molecular weight of 200-2,000 �Resin B is a resin obtained by polycondensation of at least one phenol represented by the structural formula (II): ##STR2## wherein n is 0, 1, 2 or 3, with at least one aldehyde!. In the resin composition, the mixture of Resin A and Resin B may further contain Resin C which is an ester of Resin B with a 1,2-quinonediazidesulfonic acid.
摘要:
An engine blower includes a centrifugal blower having a volute case in which a fan is accommodated; an engine attached to the centrifugal blower for driving the fan; a carburetor mounted to the engine via an insulator; and a lead wire that establishes conduction between the engine and the carburetor. The electrical potential difference between the engine and the carburetor can be eliminated, which prevents electrostatic discharge between the engine and the carburetor even when static electricity is built up in a volute case or a ventilation tube. Accordingly, ignition timing can be prevented from shifting due to an influence on an electrical circuit by the discharge within an ignition unit.
摘要:
The invention provides an operation unit of an engine provided with a throttle operating lever operating a throttle valve of the engine from an idle position to a full-open position, two terminals connected to an inner side of a drive circuit of a start motor, a contact element interposed between the terminals and setting a region between both the terminals to a conduction state or a non-conduction state, and a start switch making the region between the terminals conductive or non-conductive, the operation unit further comprising interlocking means for relatively moving a contact position between at least one terminal of the two terminals and the contact element in correspondence to an operation amount of the throttle operating lever, and the terminals and the contact element being brought into contact with each other only at a time when the throttle operating lever is at an idle position.
摘要:
A membrane separator assembly for separating solids from water includes opposing enclosure wall structures, a membrane module unit, and a gas diffuser disposed below the membrane module unit. The membrane module unit includes a plurality of membrane modules respectively having at least one separating membrane extending between at least two membrane fixing members. At least one of the membrane fixing members has a main passage which is in fluid communication with a membrane passageway. The membrane passageway is accessible to water via permeation through the separating membranes and is inaccessible to solids which are impermeable relative to the separating membranes. The membrane separator assembly is preferably used with a detergent containing percarbonate, preferably sodium percarbonate. The assembly also includes a gas diffuser with two opposing main pipes and branch pipes extending therebetween to avoid undesired pressure differentials when cleaning the assembly.
摘要:
There is provided a driving apparatus which includes an acquisition section which acquires a parameter for driving an imaging element, which receives an optical image from a subject and outputs an imaging image as an electric signal, in an action mode which is desired by a user; a timing generation section which generates respective timings of the starting of each of a plurality of horizontal synchronization periods, where horizontal synchronization periods which are only different in terms of the number of clocks determined in advance are acquired in a mixed state, based on the parameter; and a driving control section which receives the optical image from the subject for each line which configures the imaging element by synchronizing the respective timings which are generated using the timing generation section.
摘要:
An image signal processing apparatus includes an image pickup unit operable to take image information; an image signal-processing unit operable to process the image information; a display unit operable to display the image information on a display; a recording unit operable to record the image information onto a recording medium; a reproducing unit operable to reproduce the recorded image information; a communication unit operable to communicate with an external image display to display the image information on the external image display; an obtaining unit operable to obtain an adjustive image pattern used to adjust image quality so as to correspond to image-displaying performance of the external image display; an adjustive image display unit which permits the adjustment of the image quality by correcting parameters used by the image signal-processing unit to perform image signal processing based on the adjustive image pattern, the adjustive image display unit acting to display the adjustive image pattern representing an uncorrected state and a corrected state on the external image display; and a correcting unit operable to correct the image quality to match displaying characteristics of the external image display by correcting the parameters used by the image signal-processing unit to perform the image signal processing so as to correspond to the corrected adjustive image pattern displayed by the adjustive image display unit.
摘要:
The invention provides an operation unit of an engine provided with a throttle operating lever operating a throttle valve of the engine from an idle position to a full-open position, two terminals connected to an inner side of a drive circuit of a start motor, a contact element interposed between the terminals and setting a region between both the terminals to a conduction state or a non-conduction state, and a start switch making the region between the terminals conductive or non-conductive, the operation unit further comprising interlocking means for relatively moving a contact position between at least one terminal of the two terminals and the contact element in correspondence to an operation amount of the throttle operating lever, and the terminals and the contact element being brought into contact with each other only at a time when the throttle operating lever is at an idle position.
摘要:
The invention concerns a gas diffuser constructed and arranged to disperse gas into a aeration vessel of a water treatment assembly from a blower. The gas diffuser includes main pipes, branch pipes extending between the main pipes and containing gas discharge ports, wherein the branch pipes have a smaller cross-sectional area than the cross-sectional area of the main pipes. The gas discharge ports are further sized, constructed and arranged to reduce the possibility or likelihood of sludge from blocking the ports or entering the branch pipes. This object is achieved either by placement of the ports on the bottom sides of the branch pipes or, alternatively, by construction of the ports to include conduit members, themselves having an arrangement of openings or coverings to prevent or reduce the likelihood of sludge from blocking the ports or entering the branch pipes.
摘要:
An object is to provide a highly integrated hollow fiber membrane module and hollow fiber membrane module unit as filtration processing devices which are appropriate for miniaturization, and to also provide a purification tank with a hollow fiber membrane module unit installed therein. To achieve this there is provided a hollow fiber membrane module in which at least one end of a hollow fiber membrane with hollow fibers deployed in a plane is fixed with a fixing resin to a collector pipe in a fluid tight manner, constructed such that an open ended tip of the hollow fiber membrane is inserted into an aperture provided in the collector pipe, and in this condition, fixing resin is filled into the aperture and hardened, thereby securing the open ended hollow fiber membrane to the collector pipe. Also provided is a hollow fiber membrane module unit wherein a plurality of the hollow fiber membrane modules are positioned proximately, and a purification tank with the hollow fiber membrane module units installed therein.