摘要:
There is provided a condition detection apparatus for detecting a present operating condition of a linear rolling motion guide apparatus, and the condition detection apparatus includes an AE sensor 1 for detecting a waveform elastically generated at least due to rolling of balls included in the linear rolling motion guide apparatus and mutual collision of the balls and generating an electric detection signal corresponding the detected waveform, a waveform shaping unit 2, an A/D converter 3, and a signal processing unit 4 judging a content of the operation condition in response to the generated detected signal Sae.
摘要:
A condition detection apparatus comprising an AE sensor 1 that detects AE waves, which elastically-occur when a plurality of balls included in an LM system self-rotate and revolve within a circulation section at the same time, and generates detection signals Sae, and a signal processing unit 4 that generates a first parameter indicating an intensity of the AE waves based on the generated detection signals Sae, generates based on the detection signals Sae a second parameter by weighting only detection signals Sae temporally-continuously detected among the detection signals Sae, generates based on the detection signals Sae a third parameter by weighting only detection signals Sae temporally-discontinuously detected in correspondence with the movement of the balls among the detection signals Sae, and judges contents of an operational condition of the LM system using any one of the first, second or third parameter, is provided to enable prognosis of occurrences of failures in the LM system, to improve maintainability for a user of the LM system, and to contribute to the prolonging of the operation life of the LM system as well as performance assurance and quality improvement of apparatuses or devices incorporated with the LM system.
摘要:
A wiper controller which detects the raindrops adhered onto the windshield glass G of the vehicle to control the wiper based on the detected result is provided with a wiped water measurement unit for calculating an amount of water wiped by the wiper, a wiper operation time counter for counting the actual wiper operation time based on the ON/OFF signal of the wiper motor for driving the wiper, a delay time calculation unit which obtains the wiper operation delay time by comparing the actual wiper operation time with the reference wiper operation time, and an operation change determination unit for determining with respect to the need for changing the wiper operation based on the wiper operation delay time and the amount of water wiped by the wiper. The change in the rainfall state is derived from the wiper operation delay time and the amount of water wiped by the wiper to appropriately control the wiper in response to the change in the rainfall state.
摘要:
Disclosed is an exhaust gas purifying apparatus for an automobile diesel engine including a pair of electrodes disposed at a predetermined interval in an exhaust path of an automobile diesel engine, and a high voltage power source for applying a high voltage to the pair of electrodes whereby an electric field is generated in a space between the pair of electrodes so as to collect diesel particulates. Since the diesel particulates emitted from a diesel engine are charged heavily in negative, and since the exhaust gas purifying apparatus forms an electric field between the pair of electrodes, the diesel particulates are collected on one of the pair of electrodes. Hence, in accordance with the exhaust gas purifying apparatus, it is possible to purify the exhaust gas without substantially increasing the exhaust gas pressure loss of the diesel engine, without deteriorating the output of the diesel engine resulting from the pressure loss and without deteriorating the combustion reaction in cylinders of the diesel engine. In addition, it is possible to down-size the exhaust gas purifying apparatus remarkably compared with a conventional apparatus employing a ceramic filter.
摘要:
A radial tire provided with a tread pattern suitable for travel on paved roads at a high speed is disclosed.The tread pattern is of a block-rib type which is constructed to satisfy the following conditions, i.e.(1) W.sub.1 =(5-9%) TW(2) W.sub.2 =(0.5-2.5%) TW(3) 60% BW.gtoreq.A and A.gtoreq.20% TW(4) B.sub.2 =(1.0-2.0) B.sub.1where W.sub.1 is a width of a wide circumferential groove, TW is a tread width, W.sub.2 is a width of a narrow circumferential groove, BW is an effective width of a belt, A is a width of a tread center portion, B.sub.1 is a tread side portion facing the tread center portion and B.sub.2 is a tread side portion facing two shoulder portions.
摘要:
A radial tire having a highly durable bead structure, comprising a carcass ply having a high modulus of elasticity is disclosed. The bead is constructed to satisfy the following conditions, i.e.,h.sub.2 = (1/10 to 1/2)h.sub.0, and (1)d = (1/30 to 1/5)D (2)where h.sub.0 is a vertical height of the upper end of a turn up portion of the carcass ply measured from a base of the bead, h.sub.2 is a vertical distances from the upper end of the turn up portion of the carcass ply to the upper end of an inner reinforcing cord layer, after the tire has been mounted and inflated d is an interlayer gauge of a space formed between the turn up portion of the carcass ply and an outer reinforcing cord layer and measured on a line passing through the upper end of the turn up portion of the carcass ply and perpendicular to the carcass ply and D is a thickness of that portion of the bead which is measured on said line. A rubber having a modulus of elasticity of 20 to 100 Kg/cm.sup.2 at 100% elongation is inserted into said space.
摘要:
To provide a web page searching device for a portable telephone, the device to search data and transmit search results as a web page to the terminal device of a user wishing to acquire such data using the web display function in a portable telephone. A web page searching device for a portable telephone comprises at least a web server and a mail server for providing data via the Internet. The web page searching device further comprises a web publisher database for creating a web page and a web publication database. The web server comprises a function for transmitting web pages to user terminal devices, the web pages including a region part, a category search part, a keyword search part, the results of these searches, and a portable telephone display part replicating the web page to be displayed in a portable telephone; and a function for transmitting the search results as a web page to the portable telephone of the user.
摘要:
Provided by this invention are an acrylamide polymer which has a weight-average molecular weight (a) of from 1,500,000 to 10,000,000 and a weight-average inertial radius (b) of from 30 to 150 nm, the ratio (b)/(a) of the weight-average inertial radius (b) to the weight-average molecular weight (a) being 0.00004 or smaller; and an aqueous solution of an acrylamide polymer which solution has a polymer concentration ranging from 22 to 60%, a Brookfield viscosity at 25.degree. C. of 50,000 cps or smaller and a weight-average molecular weight of from 500,000 to 10,000,000. They are useful as paper strength agents.
摘要:
Provided by this invention are an acrylamide polymer which has a weight-average molecular weight (a) of from 1,500,000 to 10,000,000 and a weight-average inertial radius (b) of from 30 to 150 nm, the ratio (b)/(a) of the weight-average inertial radius (b) to the weight-average molecular weight (a) being 0.00004 or smaller; and an aqueous solution of an acrylamide polymer which solution has a polymer concentration ranging from 22 to 60%, a Brookfield viscosity at 25.degree. C. of 50,000 cps or smaller and a weight-average molecular weight of from 500,000 to 10,000,000. They are useful as paper strength agents.
摘要:
A self-excited inverter circuit primarily includes a main transformer two switching elements e.g. the first and second (FET) switching elements, wherein capacitors at both ends of said first FET are charged during a time T.sub.1 -T.sub.2 when said first FET is turned off, and the voltage V.sub.g1 across said first FET is clamped by a charge voltage V.sub.c1 and then, a voltage V.sub.gs is applied across the gate and the source of said second FET for electrical continuity to cause the voltage to be clamped. The clamped state is maintained from T.sub.1 to T.sub.2, the saturation reactor is saturated at time T.sub.3, and V.sub.gs, which has been negative, starts to change toward O, thereby causing the first FET to change to ON; V.sub.q falls towards VPi at TP3 and further towards zero point. Thus, the voltage V.sub.q2 changes to zero to cause V.sub.gs of the second FET to become zero and the second FET to be shut off. When said voltage V.sub.q2 is clamped to a fixed value, a high -V.sub.sc (L) can be obtained in the case of Vi(L), whereas a low -V.sub.sc can be obtained in the case of Vi(H); and the continuity angle, or duty cycle, (T.sub.1 -T.sub.2)/(T.sub.1 -T.sub.3) of the first FET is naturally controlled to be kept in a desirable direction.