摘要:
An electrophotographic image forming apparatus includes an electrostatic latent image carrying body, an electric charger for uniformly electrifying the carrying body, an optical exposure unit to form an electrostatic latent image on the carrying body, a developer for developing the electrostatic latent image to form a toner image on the carrying body, a transfer unit for transferring the toner image from the carrying body onto a printing sheet, a fixing unit for fixing the toner image to the printing sheet, a cleaner for cleaning to remove residual toner from the carrying body and a toner returning mechanism for returning the residual toner removed by the cleaner to the developer. The developer includes a housing in which a toner chamber is defined, a developing roller rotatably mounted in the housing, an agitator rotatably mounted in the housing so as to be positioned in the toner chamber, a partitioning member provided in the housing for defining a carrier chamber adjacent to the developing roller. The toner returning mechanism includes a toner recirculator for recirculating the residual toner removed from the carrying body to the toner chamber.
摘要:
In a tire air pressure estimation based upon vibration components extractedrom a vehicle wheel speed signal, when the vehicle is a driven vehicle wheel, the precision of estimation is improved by canceling the components of vibration due to the resonance of the drive system from the vibration components based upon which the estimation calculation is made. The vibration components due to the resonance of the drive system can be canceled by canceling those vibration components extracted from the vehicle wheel speed signal which are the same in the phase between left and right driven vehicle wheels. When the tire air pressure of one of a pair of left and right driven vehicle wheels is lower than that of the other, the lower tire air pressure is more correctly estimated. Therefore, the higher tire air pressure may be estimated according to the lower tire air pressure against the drive system resonance.
摘要:
A method for X-ray computed tomography includes a process for rotating around an object an X-ray source for applying a cone-beam X ray and a scanner having a two-dimensional X-ray detector mounted thereon for deriving projection data and a process for preparing a geometric distortion correction table for correcting an image geometric distortion of the two-dimensional X-ray detector for the projection data, for reconstructing a distribution of X-ray attenuation coefficients of the object from said corrected projection data. The method further includes a process for calculating a function for evaluating the correction table, a process for comparing the calculated value with a threshold value, a process for correcting the correction table through the interpolation based on the compared result, a process for correcting an image geometric distortion of the projection data by using the corrected table, a process for detecting a location of a view field boundary of the detector from the distortion-corrected projection data, and a process for generating the projection data of a predetermined width from the detected location of the view field boundary through the effect of the extrapolation. The method operates to reconstruct a distribution of X-ray attenuation coefficients of the object from the extrapolated projection data.
摘要:
When a leading end of a run on an upper row in a binary mask which performs raster scan over a binary image is detected, a run label which was assigned to the same run when scanning a row preceding the current row by one row is read out, and label diversion destination data is read from a concatenation table using the read run label as an address. A temporary label is determined by comparing a concatenated label, which indicates the minimum label value of the runs prior to the run on the upper row of which leading end is detected and adjacent to the run existing on the run on the lower row of the binary mask, with the diversion destination data read from the concatenation table. If one of them is 0, the other label data is issued as the temporary label. If both of them are 0, a new label is issued as the temporary label. If the compared label values are different from each and are not 0, the smaller label value is written into the concatenation table using the larger label value as the address. In the labeling process for a binary image data, a frequency of assignment of multiple labels to the same object is reduced, and thereby a load in a label integrating process is reduced.
摘要:
An X-ray computed tomography apparatus includes a controller for shifting an X-ray focal spot position of an X-ray source, a plurality of first temporary holding devices respectively connected to X-ray detector elements to temporarily hold measured values of X-ray intensity transmitted through an object to be incident on the X-ray detector elements, a switch device for switching over connection between the X-ray detector elements and the first temporary holding devices, a controller for controlling switchover of the switch device, a transfer device for transferring the measured values from the first temporary holding devices to an interpolation calculating device, an interpolation calculating device for performing interpolation calculations on the projection data to generate projection data equivalent to projection data measured by using a measuring system virtually having twice as many X-ray detector elements as the arranged X-ray detector elements, a memory for holding parameters used for calculations in the interpolation calculating device, and an image reconstructor for reconstructing a tomographic image on the basis of the projection data generated by interpolation calculating device.
摘要:
The invention is a method and apparatus wherein a disturbance acting on a tired wheel of a vehicle is estimated by a disturbance observer on the basis of the detected angular velocity of the wheel. In one form of the method, the wheel angular velocity is compensated for the disturbance, depending upon the amount of change of the wheel angular velocity caused by the disturbance. In another form of the method, the angular acceleration of the wheel as well as the disturbance is estimated by the observer, and the moment of inertia of the wheel is obtained according to a relationship between the estimated disturbance and angular acceleration of the wheel.
摘要:
A separator for alkaline batteries comprising as at least part of the main fibers a fibrilated product of cellulose fiber obtained by dissolving cellulose in a solvent and depositing cellulose directly. As another main fiber, preferably an extra fine synthetic fiber, particularly preferably a polyvinyl alcohol synthetic fiber is used. The binder is preferably polyvinyl alcohol. Also provided is an alkaline battery wherein such a separator is used. Preferably, the above cellulose fiber is cellulose fiber whose wet Young's modulus is 20 g/d or more and orientation degree .DELTA.n is 42.times.10.sup.-3 or more.
摘要:
A size comparing circuit adopts a configuration wherein bits of two binary numbers to be compared corresponding to each other are compared sequentially from the most significant bit (MSB) side by one-bit judging device, and when one bit is judged to be larger as a result of this comparison, the binary number containing that bit is judged to be larger, so that, in the case where each pair of bits are compared from the MSB side and the values of both bits corresponding to each other differ, the result thereof is found immediately.
摘要:
An antibiotic, Spicamycin, having the physicochemical properties set forth below is produced by aerobically cultivating a Spicamycin-producing Streptomyces strain in a suitable culture medium, and recovering from the culture the antibiotic, Spicamycin.(1) Color and properties: Weakly acidic white powder(2) Melting point: 215.degree. to 220.degree. C. (decomposed)(3) Specific rotatory power: [.alpha.].sub.D.sup.25 =+15.degree. (C: 0.15, in methanol)(4) Elementary analysis (Found): C: 57.4%, H: 8.3%; N: 15.7%, O: 18.6%(5) Ultraviolet absorption spectrum (maximum):______________________________________ CH.sub.3 OH 264 nm (E.sub.1cm.sup.1% 257) 0.01N NaOH + CH.sub.3 OH 272 nm (E.sub.1cm.sup.1% 226) 0.01N HCl + CH.sub.3 OH 273 nm (E.sub.1cm.sup.1% 258) ______________________________________ (6) Infrared absorption spectrum (as measured by the potassium bromide method): As shown in FIG. 2.(7) Solubility in Solvent: Soluble in basic water, dimethyl sulfoxide, methanol, ethanol, n-propanol, and n-butanol. Sparingly soluble in water, acetone, ethyl acetate, and chloroform. Insoluble in benzene, ethyl ether, and hexane.(8) Thin layer chromatography (using "Silica Gel 60F.sub.254 " plate supplied by Merck & Co., Inc.):______________________________________ Developing solvent Rf value ______________________________________ Chloroform:Methanol (1:1) 0.34 ______________________________________ (9) NMR spectrum (400 MHz, in deuteromethanol): As shown in FIG. 3.
摘要:
Provided are an alkaline battery separator and an alkaline battery including the separator. The separator includes at least a coarse layer and a dense layer denser than the coarse layer. The coarse layer contains an alkaline-resistant cellulose fiber having a freeness value of 350 to 650 ml as a whole in the proportion of 25 to 65% by weight. The alkaline-resistant cellulose fiber includes at least two kinds of alkaline-resistant cellulose fibers having different freeness with each other. The difference in freeness value between the alkaline-resistant cellulose fibers having the highest and lowest freeness values is 300 to 700 ml. The dense layer contains an alkaline-resistant cellulose fiber which as a whole has a freeness value of 0 to 400 ml. The separator has a maximum pore size of 65 μm or smaller, and a liquid absorption capacity of 5 g/g or higher.