摘要:
Disclosed herein is magnetic particles containing iron as the main component which have an average particle diameter of 0.1 to 3.0 .mu.m and a liquid absorption of not more than 18 m.infin..
摘要:
Each block of data having information data and redundant bits is transmitted without any synchronous signal bit word, while transmitted data is processed to find the boundary between consecutive data blocks so that a synchronous signal will be produced at the receiving end. The system for producing the synchronous signal comprises a cyclic redundancy check (CRC) circuit, a frequency divider for dividing the frequency of shift clock pulses and a reset pulse generating circuit. The reset pulse generating circuit is responsive to the output signal from the frequency divider and the shift clock pulses to produce periodically first and second reset pulses with which the CRC circuit and the frequency divider are initialized. The reset pulse generating circuit is further responsive to an error signal from the CRC circuit so that further first and second reset pulses are produced with which the CRC circuit and the frequency divider are initialized again. Initialization is repeated until the frequency divider is synchronous with the bits of the data blocks, and once synchronizm is established, the output signal from the frequency divider can be regarded as the synchronous signal indicative of the boundary between any two consecutive data blocks.
摘要:
A phase-shifting circuit comprises a first transistor circuit having a base to which an input signal is applied, first and second resistors of equal resistance values connected mutually in series and between an emitter of the first transistor circuit and ground, a third resistor connected at one terminal thereof to the emitter of the first transistor circuit, a capacitor connected between the other terminal of the third resistor and ground, and a second transistor circuit having a base connected to said other terminal of the third resistor and an emitter connected to the junction between the first and second resistors, an output signal being led out from a collector of the second transistor circuit.
摘要:
Iron particles for purifying soil or ground water of the present invention comprise a mixed phase of α-Fe phase and Fe3O4 phase, and having a BET specific surface area of 5 to 60 m2/g, an Fe content of not less than 75% by weight based on the weight of the iron particles and a sulfur content of not less than 1,000 ppm. The iron particles are capable of decomposing or insolubilizing harmful substances such as organohalogen compounds and/or heavy metals, cyanogen, etc. contained in the soil or ground water in efficient, continuous and economical manners.
摘要翻译:用于纯化本发明土壤或地下水的铁颗粒包含α-Fe相和Fe 3 O 4 O 4相的混合相,并且具有BET比表面积 5至60m 2 / g,Fe含量不小于75wt%,基于铁颗粒的重量和不少于1,000ppm的硫含量。 铁颗粒能够以有效,连续和经济的方式分解或不溶解包含在土壤或地下水中的有机卤素化合物和/或重金属,氰原等有害物质。
摘要:
Iron particles for purifying soil or ground water of the present invention comprise a mixed phase of α-Fe phase and Fe3O4 phase, and having a BET specific surface area of 5 to 60 m2/g, an Fe content of not less than 75% by weight based on the weight of the iron particles and a sulfur content of not less than 1,000 ppm. The iron particles are capable of decomposing or insolubilizing harmful substances such as organohalogen compounds and/or heavy metals, cyanogen, etc. contained in the soil or ground water in efficient, continuous and economical manners.
摘要:
More reality is given to weather phenomena reflected on an image displayed on a screen of a display unit and on operability of an operatable object. A global weather deciding part 901 decides weather in each global area obtained by dividing the whole map of a virtual world into a plurality of global areas. The weather in the global area in question is decided at intervals of a first time, in accordance with a preset behavior model and considering area information of each global area in advance. A local weather deciding part 902 decides weather in each local area obtained by dividing each global area into a plurality of local areas. The weather in the local area in question is decided at intervals of a second time, which is shorter than the first time, in accordance with the weather of the global area concerned decided by the global weather deciding part 901, and considering area information of each local area.
摘要:
Calcium-iron oxide composite particles of the present invention have a BET specific surface area of 1 to 100 m2/g and containing iron atom in an amount of 1 to 50 moles based on 100 moles of calcium atom, the iron atom of not less than 50% based on the total amount of iron atom contained in said calcium-iron oxide composite particles being bonded with calcium atom for forming a calcium-iron ferrite phase. A hydrogen chloride-scavenger comprising the calcium-iron oxide composite particles, is capable of effectively capturing harmful hydrogen chloride generated by thermal decomposition or combustion of chorine-containing resin molded products upon fire or incineration thereof, and fixing the hydrogen chloride as stable calcium chloride or the like.
摘要:
A dust-removing synthetic resin filter of the present invention comprises a filter material which comprises: synthetic resin fibers; and iron oxide particles having a catalytic activity to chlorine or hydrogen chloride gas. Such a dust-removing synthetic resin filter is capable of so-called clean combustion which is free from discharge of harmful substances upon incineration thereof and is advantageous from the standpoint of preventing environmental pollution.
摘要:
The present invention relates to the compounds of the formula: ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, and R.sup.8 are independently hydrogen, lower alkyl which is optionally substituted, lower alkoxy which is optionally substituted, hydroxy, acyloxy, or halogen; R.sup.9 is hydrogen, hydroxy, acyloxy, lower alkyl which is optionally substituted, lower alkoxy which is optionally substituted, or lower alkylamino which is optionally substituted; E.sup.1 is hydrogen, or an ester residue; m is an integer of from 1 to 4;or a pharmaceutically acceptable salt thereof. The compounds of the present invention exhibit phospholipase A.sub.2 inhibitory activity, and can be used in treating inflammatory conditions.
摘要:
Disclosed herein is a damping material comprising:(a) a binder composed of 100 parts by weight of an ethylene-vinyl acetate copolymer containing 30 to 65 wt % of vinyl acetate, and 160 to 330 parts by weight of a petroleum resin containing an aromatic petroleum resin as the main ingredient; and(b) 30 to 180 parts by weight of a filler composed of a scaly powder.