摘要:
The method of preparing the porous material incorporating ultrafine metal particles comprises the following steps: (1) preparing surface-protected ultrafine metal particles by reducing metal ions in the presence of molecules such as dodecanethiol molecules; (2) immersing a wet gel in a solution of the ultrafine metal particles, thus forming an ultrafine metal particle/wet gel composite in which the ultrafine metal particles are incorporated in the wet gel; and (3) drying the ultrafine metal particle/wet gel composite to form a porous body.
摘要:
A negatively chargable toner for electrophotography, comprising a binder, a coloring agent and a charge control agent, the charge control agent comprising a copolymer of 1 to 30% by weight of a sulfoalkyl (meth)acrylic acid monomer represented by a specific chemical formula and 99 to 70% by weight of other vinyl monomer copolymerizable therewith, the amount of the charge control agent being from 0.1 to 10 parts by weight for 100 parts by weight of the binder. The toner can be charged immediately, can stably maintain the toner properties, in particular, under the conditions of high temperatures and high humidities, can produce a good image that is free from toner scattering, fogging and the like, and can be made into a color toner capable of clearly forming a colored image.
摘要:
A woven belt having thick and narrow portions with a breaking strength per unit width that exceeds the level of strength of conventional fabric straps and belts. One embodiment of the belt includes at least four layers of weave structure in which two outer layers are woven into a hollow tube by a common weft and the remaining inner layers are woven together by a second weft. The widthwise central area of the belt is provided with a thickness that is larger than a quarter of the belt width.
摘要:
An inorganic thin film EL device comprises, on an insulating substrate 1, a back electrode 2, an insulating layer 3, a light emission layer 4, an insulating layer 3, and a transparent electrode 5 formed on the substrate 1 in this order. The emission layer comprises a fluoride of an alkaline earth metal and at least one member selected from the group consisting of rare earth element metals and compounds thereof at a mixing ratio by weight of 10:90 to 95:5. The rare earth element is, for example, cerium, praseodymium, neodium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and mixture thereof. The compounds may be those compounds of the rare earth elements and fluorine, chlorine, bromine, iodine and oxygen.
摘要:
A hydraulic anti-lock brake system for a motor vehicle including a detector for obtaining rotating speeds of front right and left wheels and rear right and left wheels of the vehicle, hydraulic brakes for braking the front and rear wheels with brake pressures, and an anti-lock pressure regulating device for controlling the brake pressures on the basis of an output of the detector, so as to prevent excessive slipping of the front and rear wheels, the anti-lock pressure regulating device including a device for generating a pressure difference between the brake pressures for the rear right and left wheels, such that the brake pressure for the higher-speed rear wheel is lower than that for the lower-speed rear wheel, so that the higher-speed rear wheel is used as a speed monitoring wheel whose speed is used by the pressure regulating device for control the brake pressures.
摘要:
An electrophotographic process, which comprises the steps of: forming an electrostatic latent image on an amorphous silicon photoreceptor; developing the electrostatic latent image with a capsule toner; superimposing transfer paper on the capsule toner image thus formed; and simultaneously transferring and fixing the image on the paper by applying pressure.
摘要:
An image processing apparatus having: an unit for receiving a digital multi-value pixel data; a D/A converter for converting the inputted multi-value pixel data into an analog signal; a generator for generating an analog pattern signal synchronously with an input of the digital multi-value pixel data; a sample/hold circuit for sampling and holding the analog signal converted by the D/A converter, synchronously with an input of the digital multi-value pixel data; and a binarizing circuit for generating a binarized pulse signal having a width corresponding to the value of the digital multi-value pixel data by comparing the analog signal held the said sample/hold circuit with the pattern signal generated by the pattern signal generator. A D/A converter having: a digital/analog conversion unit for converting a digital signal into an analog signal at the same speed as the period of generating the digital signal; and a sample/hold circuit for holding and outputting the analog signal converted by the digital/analog conversion unit, synchronously with the period of generating the digital signal.
摘要:
A method of and an apparatus for determining the individual existence of first and second groups of particles contained in a fluid and differing in characteristics from each other that are capable of, e.g., during an automatized ion exchange operation, individually distinguishing anionic and cationic ion-exchange resin particles and capable of easily monitoring their regeneration state. A plurality of beams comprising different wavelength bands are emitted from light-emitting elements, projected onto a subject of measurement containing first and second particles, and received by light-receiving elements, and the reflectivities of the beams are measured. When the ratio of the reflectivity of a first of the beams to that of a second of the beams is above a predetermined value, the subject of measurement is determined to contain particles of the first kind, whereas when that ratio in reflectivity is below the predetermined value, the subject of measurement is determined to contain particles of the second kind.
摘要:
A vehicle anti-lock brake control apparatus for controlling a fluid pressure in a brake cylinder for a wheel, having a pressure-regulating valve device, a slip detecting device for detecting a slip of the wheel, and a control device for controlling the valve device based on the detected wheel slip, so as to prevent excessive slipping of the wheel. The slip detecting device includes a device for detecting a smoothed wheel acceleration value which is an acceleration value of the wheel smoothed by a predetermined time constant, and a device for determining an acceleration value of the vehicle. The control device includes a device for generating control commands to be applied to the valve device, for increasing and decreasing the fluid pressure such that a mean wheel acceleration value intermediate between adjacent minimal values of the smoothed wheel acceleration value approaches the vehicle acceleration value.
摘要:
A webbing for a safety belt includes a main part and selvedges extending along both sides of the main part. The denier size of warp threads in the selvedges is smaller than that of warp threads in the main part. The denier size of weft threads in the main part is at least equal to that of the warp threads in the selvedges. The heat shrinkage percentage of the weft threads in the main part is greater than at least the heat shrinkage percentage of the warp threads in the main part.