PROBLEM TO BE SOLVED: To provide an educational material learning system in which user's comprehension degree and progress of the educational materials and lessens using IT is automatically evaluated and managed utilizing IT.

SOLUTION: The educational material learning system is provided with a server and at least one user terminal connected to the server via a network. The server is provid...

PROBLEM TO BE SOLVED: To prevent occurrence of internal short-circuiting due to deposition of sponge lead on the upper and lower faces of the pole plate group in a lead acid storage battery which comprises a pole plate group obtained by laminating a positive plate and a negative plate of flat-plate shape through a separator, and in which the separator is constructed of a laminate of a glass mat...

PROBLEM TO BE SOLVED: To improve life and lessen unevenness of the same when a multi-stage charging control system of setting a first-stage charging voltage V1at an equilibrium voltage of a lead storage battery plus 80 mV or higher and a second- and subsequent-stage charging voltages V2to Vnat an equilibrium voltage of the lead storage battery plus 70 mV or lower for ...

PROBLEM TO BE SOLVED: To improve a life and to reduce its fluctuation when a multistage charge control system is adopted for a control valve type (seal type) lead storage battery using a lead alloy grid virtually not including Sb for a positive electrode grid used on the condition that it is charged constantly with a fixed charging voltage.

SOLUTION: In a battery of multistage charge contro...

The tensioning cable (10) is made from extruded polysiloxane of circular cross-section, with a diameter of between 6 and 15 mm.

Mammography device has an X-ray tube (12), a receiver (14) for capturing the radiation incident from the tube, an ultrasonic measurement transducer (18) that is manipulated manually by an operator, a compression pad (16) between tube and receiver that is transparent to X-rays; and sensors (20) for determining the position of the ultrasonic transducer relative to the rest of the mammography device....

The apparatus is used to determine the colour of a tooth (12) in the mouth of a patient. The apparatus has a light source (10) with a visible light spectrum. A first light conductor (20) conveys the light from the light source (10) to the tooth to be examined. A second optical conductor (24) has an end joined to the end of the first conductor (20) to receive light reflected from the surface of the...

The present invention relates to a sintered body of a carbonitride alloy with titanium as main component which has improved properties particularly when used as cutting tool material in light finishing cutting operations at high cutting speed. This has been achieved by combining a carbonitride based hard phase of specific chemical composition with an extremely solution hardened Co-based binder pha...

A method and device for use with helical scan data recording by implementing a Reed-Solomon product code, a unitary medium comprising such data, and a cassette comprising such medium. Error protective data encoding for use with rotary head helical scan tape-recording is done by providing a first word-wise Reed-Solomon code along each recording track defined in first code words, and a second Reed-S...

The present invention relates to a method for manufacturing a sintered body of carbonitride alloy with titanium as the main component and at least 2 at% of each of tantalum and tungsten and that the atomic N/(C+N) ratio is 25-50 at% and cobalt as the binder phase and which does not have any compositional gradients or center porosity concentration after sintering. This is achieved by processing the...

A sheet receiving apparatus in a sheet-fed rotary printing press includes at least one paper receiving bar (35a,35b,35c), an air cylinder (25), and a moving plate (30). The paper receiving bar is inserted in a dropping path for a sheet-like printing product to temporarily stop it after printing. The air cylinder moves the paper receiving bar between a wait position and a sheet receiving position. ...

PROBLEM TO BE SOLVED: To provide an ETC system electromagnetic wave absorbing soundproof wall capable of absorbing -10 dB or more of an electromagnetic wave at a wide angle such as an angle of incidence in a high frequency zone of 4 to 6 GHz used by the ETC system, effectively preventing the malfunction of the ETC system and, effectively absorbing the noise of a vehicle by absorption of 0.6 or ...

PROBLEM TO BE SOLVED: To solve the problems of the need for a complex hardware to specify the position of a robot and to confine it and the need for large-scale rewriting of a program, training, etc., to carry the robot and use it.

SOLUTION: A system for specifying position of robot and confining the robot comprises a boundary signal transmitter 30 which can be carried for transmitting boun...

PROBLEM TO BE SOLVED: To provide an entrance/exit managing system, an entrance/exit managing method, a program for executing entrance/exit management, and a recording medium for recording its program.

SOLUTION: The entrance/exit managing system for executing entrance/exit management at a plurality of management spots is provided with a server connected to a network for managing right inform...

PROBLEM TO BE SOLVED: To provide a ticket management system for allowing only a person who has purchased an electronic ticket to view contents related with the electronic ticket free until he or she comes in a hall.

SOLUTION: The ticket management device 10 holds a ticket key 22 and a license key 21 for enciphering contents obtained from a contents distribution center, and enciphers the tic...

PROBLEM TO BE SOLVED: To enable effective token management when a short-term ticket usable for instance as an ordinary ticket is replaced by a non-contact type token.

SOLUTION: The system is characterized in that it comprises a reading means for reading data recorded in an non-contact type token; an extracting means for extracting, out of the data read from the token, the date of its first ...

PROBLEM TO BE SOLVED: To provide an automatic ticket gate device capable of easily returning a traveller a ticket negligently left behind.

SOLUTION: The automatic ticket gate device has a receiving means 103 for receiving tickets, a reading means 108 for reading ticket data from a ticket received by the receiving means 103, a gating means 112 for implementing the tail gate process based on ...

PROBLEM TO BE SOLVED: To render a non-contact type token valid again after being touched during departure by an antenna for the non-contact type ticket.

SOLUTION: The non-contact type automatic ticket gate for departure, capable of processing both non-contact type tokens and non-contact type tickets, comprises a communicating means for communicating with the token or ticket touching or hove...

PROBLEM TO BE SOLVED: To enable efficient recovery of non-contact type tokens whose lives are over.

SOLUTION: The non-contact type automatic ticket gate, which handles departure acting on a non-contact type token put into the token chute, has a reading means for reading data recorded in the token; an extracting means for extracting specified life data, out of the read data, indicating the u...

PROBLEM TO BE SOLVED: To prevent the recurrence of illegal departures of a vehicle in a parked vehicle management system, which controls entries and departures of parked vehicles by identifying their license numbers, by deciding if the vehicle has an illegal departure record in view of its license number.

SOLUTION: The parked vehicle management system, wherein the image is picked up of a ve...