摘要:
A carrier for a biologically active component for immunoassay or enzymatic reaction, which comprises:a) a thermoplastic resin bead having an average diameter of from 0.05 to 20 mm,b) from 1 to 25% by weight, based on the bead, of a magnetically responsive powder bonded to the bead, andc) a polymer coated thereon in a thickness of from 2 to 30 .mu.m, said polymer having a number average molecular weight of from 200 to 10,000 and having functional groups capable of binding, or being activated to bind, the biologically active component.
摘要:
The gap between a magnetic sensor and a fitting member supporting the magnetic sensor and the surface of the magnetic sensor are coated with thin nonmagnetic coating materials having small surface friction to prevent the developer from being introduced into the gap and adhered therein. Smooth flow of the developer is maintained, and the stable and accurate detection of the condition or ratio of the developer is ensured.
摘要:
A system for detecting the rotational speed of a rotating body comprising the steps of generating two kinds of signals A and B having alternating wave forms and corresponding to the rotational speed of the rotating body by means of position-detecting devices (5a, 5b), the signals A and B having the same amplitude and having phases deviating by 90.degree., producing switching signals S(A), S(A), S(B), and S(B) from the signals A and B by means of zero-cross circuits (711, 712), producing inverted signals A and B from the signals A and B by means of inverter circuits (72, 73), producing differentiation signals dA, dA, dB, and dB by supplying the signals A, A, B and B to differentiation circuits (74, 75, 76, 77), and obtaining output signals corresponding to the rotational speed of the rotating body by selectively switching the differentiation signals dA, dA, dB, and dB in a switching circuit 78 by means of the switching signals S(A), S(A), S(B), and S(B), thereby detecting the rotational speed of the rotating body.
摘要:
A control circuit for driving an induction motor wherein an AC voltage is converted into a direct current by a rectifying circuit and the direct current is converted into a signal having a variable voltage and frequency by a transistor inverter connected in parallel with a smoothing capacitor, and a regenerative circuit is connected in parallel with the inverter, and a circuit is provided for comparing the terminal voltage V.sub.C of the smoothing capacitor and a reference voltage V.sub.r when braking is to take place is disclosed. When condition V.sub.C .gtoreq.V.sub.r exists, the transistor inverter is disabled but the regenerative circuit is allowed to operate; when the condition V.sub.C
摘要:
An induction motor drive apparatus of the type having a speed detector for detecting the rotational speed of an induction motor, speed command device for producing a command speed, and an error amplifier for amplifying a difference between the rotational speed of the induction motor and the command speed, the induction motor being driven by so controlling the amplitude of the primary current as to vary the amplitude of the secondary current in accordance with the difference between the rotational and command speeds. Included are two-phase sinusoidal wave generating device for generating two sinusoidal signals displaced in phase from one another by .pi./2 and whose amplitudes conform to the output of the error amplifier, primary load current arithmetic device for computing a primary load current by employing the output of the error amplifier and the output of the two-phase sinusoidal wave generating means, and primary current arithmetic means for computing a two-phase primary current command by adding the primary load current to the output of the two-phase sinusoidal wave generating device, which output serves as an excitation current. The induction motor is driven by the primary current command having an excitation current component and a primary load current component the amplitudes of which vary in accordance with the difference between the rotational speed of the induction motor and the command speed.
摘要:
In a DC motor control apparatus for driving a DC motor in accordance with a signal of the difference between a revolving speed signal from a speed detector coupled with the DC motor and a command speed signal so as to drive the DC motor at a revolving speed indicated by the command speed signal, when a voltage to be applied to the DC motor and the revolving speed signal from the speed detector are both detected, the operation of the DC motor control apparatus is decided as normal, and when the voltage to the DC motor is detected but the revolving speed signal from the speed detector is not detected, the operation of the DC motor control apparatus is decided as abnormal and an alarm signal is produced.
摘要:
The present invention provides a display system capable of efficiently calibrating image content even when the image is displayed and thereby capable of reducing the time and cost required for calibration, and also provides a computer-readable recording medium. The control device thereof processes an image to be displayed on a display section beforehand so as to be usable for calibration. While the image is actually being displayed on the display section, the control device captures an image displayed on the display section using a capturing device at the timing at which a calibration image is displayed, compares the luminance or color in the calibration image with the luminance or color in the image obtained by capturing the calibration image, and creates correction information for correcting an image signal to be output to the display section on the basis of the result of the comparison.
摘要:
A beer frothing device for stably generating froth without degrading beer quality is provided. The device frothing beer in a vessel by squirting a pressurized gas through a nozzle submerged in the beer, includes a pressurized gas supply, a squirting mechanism, connected to the gas supply and having a cutoff valve to obstruct the gas squirting through the nozzle, a lifting mechanism for supporting the squirting mechanism during its vertically reciprocating up-and-down movement with a half track between a start point where the nozzle is positioned right above the vessel and a lower point where the nozzle is submerged at a predetermined depth in the beer, a start switch for lowering the lifting mechanism, a direction change switch for raising the lifting mechanism when the lower point is detected during lowering operation, a stop switch for stopping the lifting mechanism when the start point is detected during rising operation, and an open-valve switch, arranged between the direction change switch and the stop switch, for opening the cutoff valve to detect an appropriate position where the nozzle is submerged in the beer. The direction change switch and the stop switch make a limit switch.
摘要:
A communication control system capable of reducing the traffic amount, CPU's processing load and channel bands related to a location registering process. In this system, a paging part (303) of a base station apparatus (300) receives a call request message transmitted from an access gateway apparatus (200) and addressed to a wireless terminal apparatus, and generates a call response message indicative of accommodating the wireless terminal apparatus. An MIP location registering part (304) registers an IP address established at the transmitting source of the call request message, and generates a location registration request message that requests a registration of an IP address established at the local base station. A packet combining part (305) generates and transmits a combined packet, which is obtained by combining the call request message with the location registration request message, to the access gateway apparatus (200).
摘要:
A radio network controller outputs a context required for a terminal capable of communicating with a mobile communication network and a wireless local area network to communicate with the wireless local area network to the terminal among pieces of information input from wireless access gateways that control connection with one or more wireless local area networks and provide seamless handover of packet communication between the mobile communication network and the wireless LAN.