摘要:
A phenoxymethylpyrimidine derivative represented by the general formula (1) ##STR1## and a herbicide containing it as an effective ingredient. This compound has a high weed killing effect, a wide weed killing spectrum and high safety on crops, and is thus useful as a herbicide.whereinX denotes a halogen atom, a lower alkyl group, a lower alkoxy group, a lower acyloxy group or a nitro group,n denotes an integer of 0, 1 or 2,Y denotes a hydrogen atom, a lower alkyl group, a lower alkenyl group, a lower alkynyl group, a substituted lower alkyl group, a substituted lower alkenyl group, a substituted lower alkynyl group, an alkali metal atom, an alkaline earth metal atom or an ammonium cation optionally substituted by alkyl group(s), andR.sup.1 and R.sup.2 each independently denote a lower alkyl group.
摘要:
The present invention relates to aminopyridine and aminopyridazine derivatives of the general formula (I) in which R1, X, W and Q have the definitions given in the description, to a number of processes for preparing them, and to their use as insecticides.
摘要:
A 1,3,5-triazine derivative represented by the following formula (I) ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4, independently from each other, represent a hydrogen atom or a group selected from the class consisting of linear or branched C.sub.1 -C.sub.6 alkyl groups, C.sub.2 -C.sub.6 alkenyl groups, C.sub.2 -C.sub.6 alkynyl groups, C.sub.1 -C.sub.6 alkyl groups substituted by C.sub.1 -C.sub.6 alkoxy or alkylthio, C.sub.3 -C.sub.6 cycloalkyl groups, a phenyl group unsubstituted or substituted by a substituent selected from halogen, nitro, cyano, lower alkyl, lower alkoxy, lower alkylthio and fluoro-substituted lower alkyl, C.sub.7 -C.sub.9 aralkyl groups unsubstituted or substituted by a substituent selected from halogen, nitro, cyano, lower alkyl, lower alkoxy, lower alkylthio and fluoro-substituted lower alkyl, and alkoxycarbonylmethyl groups having 1 to 6 carbon atoms in the alkoxy moiety; and Y represents a fluoro-substituted C.sub.1 -C.sub.3 alkyl group and a herbicidal use thereof.
摘要:
A security device, a key device and a program protection system and method capable of coping with copy protection evading software or the modification of a board. A comparison is made between a security code unique to a game program which is obtained from a prestored key code and a security code obtained by generating a random number by using a game program stored in a storage device as an initial value. When they disagree, the operation of the function module is stopped. The copy protection is executed by hardware. By integrally forming the hardware and the function module, it is possible to cope with copy protection evading software or the modification of a board.
摘要:
A fuel cell power generation system has a condensing heat exchanger with a decarbonation device for removing carbon dioxide dissolved in condensed water including an inclined plate which has an upper side with an upper surface and a lower side with a lower surface. The inclined plate is made of a porous material, and is configured so that, by circulating air for decarbonation from the lower side toward the upper side of the inclined plate and simultaneously flowing the condensed water down from the upper side toward the lower side of the inclined plate, the condensed water comes into contact with the air for decarbonation on both the upper and lower surfaces of the inclined plate while flowing down along the inclined plate.
摘要:
A wireless communication system containing at least one transmission apparatus and at least one communication terminal. The transmission apparatus transmits a wireless signal representing a bit sequence containing at least a predetermined number of bit errors, to the communication terminal. The communication terminal receives the wireless signal to regenerate the bit sequence. The communication terminal then examines the bit sequence represented by a received wireless signal to determine whether or not the number of bit errors contained in the bit sequence is equal to or greater than a predetermined number. When it is determined that at least the predetermined number of bit errors are contained in the bit sequence represented by a received wireless signal, the operation of the communication terminal is made inactive. Further, the transmission apparatus may transmit a wireless signal representing a bit sequence containing no pattern coinciding with a predetermined frame synchronization pattern, to the communication terminal. The communication terminal receives the wireless signal to regenerate the bit sequence. The communication terminal then examines the bit sequence represented by a received wireless signal to determine whether or not the bit sequence contains the predetermined frame synchronization pattern. When it is determined that the bit sequence does not contain the predetermined frame synchronization pattern, the operation of the communication terminal is made inactive.
摘要:
A wireless communication system containing at least one transmission apparatus and at least one communication terminal. The transmission apparatus transmits a wireless signal representing a bit sequence containing at least a predetermined number of bit errors, to the communication terminal. The communication terminal receives the wireless signal to regenerate the bit sequence. The communication terminal then examines the bit sequence represented by a received wireless signal to determine whether or not the number of bit errors contained in the bit sequence is equal to or greater than a predetermined number. When it is determined that at least the predetermined number of bit errors are contained in the bit sequence represented by a received wireless signal, the operation of the communication terminal is made inactive. Further, the transmission apparatus may transmit a wireless signal representing a bit sequence containing no pattern coinciding with a predetermined frame synchronization pattern, to the communication terminal. The communication terminal receives the wireless signal to regenerate the bit sequence. The communication terminal then examines the bit sequence represented by a received wireless signal to determine whether or not the bit sequence contains the predetermined frame synchronization pattern. When it is determined that the bit sequence does not contain the predetermined frame synchronization pattern, the operation of the communication terminal is made inactive.
摘要:
Hydroximic acid derivatives, useful as pesticides, have the formula ##STR1## in which G is G1 or G2 having the formula: ##STR2## in which R.sub.4 and R.sub.5 are each lower alkyl; W is O, S, SO or SO.sub.2 ; X.sub.1, X.sub.2 and X.sub.3 are, independently, hydrogen or a variety of substituents; and R.sub.1, R.sub.2 and R.sub.3 are, independently, hydrogen or a variety of substituents.
摘要:
A water pump includes a shaft to which an impeller has been attached, and a water pump housing in which the shaft is freely rotatably supported by a plain bearing. An annular mandrel having a lip seal fixedly secured to its distal end is inserted into an annular groove provided in the pump housing, thereby limiting the axial movement of the shaft.
摘要:
A ferrite composed of a polycrystalline ferrite which is obtained by sintering a ferrite starting powder by a discharge plasma technique is described. The ferrite starting powder is appropriately a coprecipitated ferrite powder. Prior to the sintering, the coprecipitated powder is preferably thermally treated or calcined at temperatures of not lower than 900.degree. C. A composite ferrite is also described, which is composed of the polycrystalline ferrite and a single crystal ferrite bonded together obtained by contacting the single crystal ferrite with the coprecipitated ferrite powder or embedding the single crystal ferrite in the powder, under which the polycrystalline ferrite powder is sintered by the discharge plasma sintering thereby bonding both ferrites together.