摘要:
A drive joint mechanism includes a drive shaft (30) and a driven shaft (24) coupled coaxially to the drive shaft (30). A coupling (31) on the drive shaft (30) or the driven shaft (24) has pin-engaging grooves (31a, 31b) and at least one pyramid-shaped pin-guide (32) between adjacent pin-engaging grooves (31a, 31b). An engagement pin (25) is provided on the other of the drive shaft (30) and the driven shaft (24) and engages the pin-engaging groove (31a, 31b). The engagement pin (25) contacts the pin-guide (32) while coupling the drive shaft (30) and the driven shaft (24). Thus, at least one of the drive shaft (30) and the driven shaft (24) is rotated by a pressing force exerted in the axial direction by the driven shaft (24) so that the pin-guide (32) guides the engagement pin (25) into the pin-engaging groove (31a, 31b).
摘要:
A drive joint mechanism includes a drive shaft (30) and a driven shaft (24) coupled coaxially to the drive shaft (30). A coupling (31) on the drive shaft (30) or the driven shaft (24) has pin-engaging grooves (31a, 31b) and at least one pyramid-shaped pin-guide (32) between adjacent pin-engaging grooves (31a, 31b). An engagement pin (25) is provided on the other of the drive shaft (30) and the driven shaft (24) and engages the pin-engaging groove (31a, 31b). The engagement pin (25) contacts the pin-guide (32) while coupling the drive shaft (30) and the driven shaft (24). Thus, at least one of the drive shaft (30) and the driven shaft (24) is rotated by a pressing force exerted in the axial direction by the driven shaft (24) so that the pin-guide (32) guides the engagement pin (25) into the pin-engaging groove (31a, 31b).
摘要:
To provide a mobile communication system that can prevent unauthorized use of an encryption key otherwise caused by loss thereof and that can securely perform a direct communication between terminals using the encryption key. A portable terminal apparatus 1-1 transmits a P2P communication trigger to a portable terminal apparatus 1-n through a key managing/distributing server 3. In response to the transmission/reception of the trigger, the portable terminal apparatuses 1-1 and 1-n establish IPsec data sessions with the key managing/distributing server 3 through a SIP server 2 and a secret key is distributed per communication to the portable terminal apparatuses 1-1 and 1-n from the key managing/distributing server 3. The portable terminal apparatuses 1-1 and 1-n establish an IPsec data session therebetween using the secret key, thereby performing a P2P communication. The key managing/distributing server 3 performs key delivery control for switching to the session and establishing the session, with respect to the portable terminal apparatuses 1-1 and 1-n.
摘要:
Method for producing highly purified silicon for use in solar cells by a single solidification purification, pouring silicon into a mold and gradually fractionally solidifying it while solidifying the liquid surface, followed by purifying the solidified silicon by zone melting or continuous casting using an electromagnetic mold, or by zone melting in combination with continuous casting, and optionally causing directional solidification to concentrate impurities, leaching and recycling.
摘要:
A method for manufacturing sponge iron and an apparatus for charging in the method are disclosed. Iron oxide powder and reducing-agent powder are charged such that alternating layers of the iron oxide powder and the reducing-agent powder are formed and such that each of the layers is in the form of a helix, and then a reduction treatment is performed. The method has not only high reaction efficiency of a gas, high quality, and high productivity, but also the advantage for a production adjustment because the amount of charge can be adjusted without the limitation of a reduction time. The molar ratio of the carbon content in the reducing agent to the oxygen content in the iron oxide in the reaction container is preferably 1.1 or more.
摘要:
Process and apparatus for refining silicon by treatment in a graphite vessel with irradiation with an electron beam while removing impurity elements by evaporation. A single graphite vessel is used, or plural graphite vessels are arranged in sequence. During treatment in successive graphite vessels, molten silicon is poured in succession from one vessel to another. Use of graphite vessels improves heat efficiency, prevents contamination and produces refined silicon containing very low contents of impurities.
摘要:
Paraformaldehyde of high formaldehyde content is produced by cooling and solidifying a 78-83 wt. % aqueous formaldehyde solution, and drying the resulting paraformaldehyde by means of microwave heating.
摘要:
In a finish heat treatment method and finish heat treatment apparatus for an iron powder, a raw iron powder is placed on a continuous moving hearth and continuously charged into the apparatus. In the pretreatment zone, the raw iron powder is subjected to a pretreatment of heating the raw iron powder in an atmosphere of hydrogen gas and/or inert gas at 450 to 1100° C. In decarburization, deoxidation, and denitrification zones, the pretreated iron powder is subsequently subjected to at least two treatments of decarburization, deoxidation, and denitrification. In the pretreatment zone, a hydrogen gas and/or an inert gas serving as a pretreatment ambient gas is introduced separately from an ambient gas used in the at least two treatments is introduced from the upstream side of the pretreatment zone and released from the downstream side so as to flow in the same direction as a moving direction of the moving hearth.
摘要:
A system, which is connectable to a first apparatus capable of data communication using a data communication protocol via a network where each session is managed by a session management protocol, includes: a connecting section which, if ID about the first apparatus exists in a storing section when a start instruction is received from the first apparatus, registers ID about a session corresponding to the start instruction in association with the ID about the first apparatus, and establishes a path enabling data communication for the first apparatus in the network using the session management protocol; and a providing section which, upon receiving the ID about the session from a second apparatus, transmits confirmation information according to the result of confirmation about whether the ID about the first apparatus is in association with the ID about the session.
摘要:
A secure, inexpensive, convenient payment system which allows an existing communication to be used to make an expensive payment terminal unnecessary, makes local communication unnecessary to make it possible to use the system by a seller and a buyer, uses closed-loop type electronic money to make it possible to make payment on delivery is obtained. An account database 6 which is arranged as equipment of a communication carrier and manages accounts of sellers and buyers (users), and a payment server 5 which is arranged as equipment of the communication carrier and performs an electronic payment process between the seller and the buyer are arranged. In the payment server 5, a primary payment server 3 and a secondary payment server 4 are arranged. When a payment request from a user is received through a communication network 10, the primary payment server 3 refers to the account database 6 to perform a real-time payment process by electronic money as primary payment between accounts of the seller and the buyer. Secondary payment is performed between the financial institution server 13 and the secondary payment server 4 in a predetermined period of time thereafter.