摘要:
In a positive electrode active material for a magnesium secondary battery and a magnesium secondary battery using it, there is contained a powder particle containing a crystal phase having a structure formed with aggregation of a plurality of crystallites (101), and amorphous phases (103a, 103b) formed between the crystallites (101) themselves; the amorphous phases (103a, 103b) contain at least one kind of a metal oxide selected from a vanadium oxide, an iron oxide, a manganese oxide, a nickel oxide and a cobalt oxide; and the crystal phase and the amorphous phases (103a, 103b) use the positive electrode active material enabling to store and release magnesium ions.
摘要:
A thermoelectric conversion material is provided, in which only a desired crystal is selectively precipitated. An M x V 2 O 5 crystal is selectively precipitated in vanadium-based glass, wherein M is one metal element selected from the group consisting of iron, arsenic, antimony, bismuth, tungsten, molybdenum, manganese, nickel, copper, silver, an alkali metal and an alkaline earth metal, and 0 The glass may comprise in mol% 10 Cu 2 O, 70 V 2 O 5 , 10 Fe 2 O 3 , 10 P 2 O 5 . The glass is converted to a glass-ceramic using microwave heating.
摘要翻译:提供一种热电转换材料,其中仅选择性地沉淀所需的晶体。 在钒基玻璃中选择性地析出M x V 2 O 5晶体,其中M是选自铁,砷,锑,铋,钨,钼,锰,镍,铜,银, 碱金属和碱土金属,0
摘要:
The invention relates to a millimeter wave radar (1) that is used for the purpose of automatic operation or collision prevention of a vehicle, it is intended to solve the Problem that a side lobe (8) of a transmitted electromagnetic wave is reflected by surrounding bodies and the reflected wave is received, with the result that unnecessary bodies may also be detected. A layer higher in dielectric loss than a radome (2) or a magnetic loss layer (9) and a conductor layer (10) in a mesh form are embedded in a part of the inside surface of the radome (2), whereby it is possible to provide a millimeter wave radar (1) which is light in weight, excellent in weathering performance, inexpensive, and excellent in detection performance.
摘要:
A channel box for nuclear-reactor fuel assemblies (MOX fuel assembly) containing plutonium is provided, capable of properly controlling excess reactivity without mixing neutron absorber or burnable poison into a fuel rod. In the channel box for a nuclear-reactor fuel assemblies, there is no gap between tne channel box (1) and members (4) containing burnable poison because the members (4) containing burnable poison are in the channel box. The burnable poison does not directly contact the reactor water. Alternatively, the burnable poison members are on a water rod (3).
摘要:
The invention relates to a millimeter wave radar (1) that is used for the purpose of automatic operation or collision prevention of a vehicle, it is intended to solve the Problem that a side lobe (8) of a transmitted electromagnetic wave is reflected by surrounding bodies and the reflected wave is received, with the result that unnecessary bodies may also be detected. A layer higher in dielectric loss than a radome (2) or a magnetic loss layer (9) and a conductor layer (10) in a mesh form are embedded in a part of the inside surface of the radome (2), whereby it is possible to provide a millimeter wave radar (1) which is light in weight, excellent in weathering performance, inexpensive, and excellent in detection performance.
摘要:
The invention relates to a millimeter wave radar (1) that is used for the purpose of automatic operation or collision prevention of a vehicle, it is intended to solve the Problem that a side lobe (8) of a transmitted electromagnetic wave is reflected by surrounding bodies and the reflected wave is received, with the result that unnecessary bodies may also be detected. A layer higher in dielectric loss than a radome (2) or a magnetic loss layer (9) and a conductor layer (10) in a mesh form are embedded in a part of the inside surface of the radome (2), whereby it is possible to provide a millimeter wave radar (1) which is light in weight, excellent in weathering performance, inexpensive, and excellent in detection performance.
摘要:
An object of the present invention is to provide an electromagnetic wave absorber which is excellent in the electromagnetic wave absorbing characteristics in the high frequency range above 1 GHz, and to provide a method of manufacturing the electromagnetic wave absorber and appliances using the electromagnetic wave absorber. An electromagnetic wave absorber and a composite member in accordance with the present invention are characterized by that magnetic metal grains are covered with ceramic above 20 volume % . Further, a method of manufacturing the electromagnetic absorber and the composite member is characterized by that composite magnetic particles, in which a plurality of magnetic metal grains and ceramic are unified, are formed through the mechanical alloying method of a composite powder composed of magnetic metal powder and ceramic powder. Further, the present invention exists in a semiconductor device, an optical sending module, an optical receiving module, an optical sending and receiving module, an automatic tollgate preventing erroneous operation due to electromagnetic wave disturbance which use the electromagnetic wave absorber.