摘要:
An antenna evaluation apparatus includes receiving antennas to be evaluated, scatterer antennas surrounding the receiving antennas, a signal generator, a divider, a phase-shift circuit, and a computer. The computer generates first and second initial phase vectors each corresponding to a different set of multipath waves, determines a third initial phase vector including arbitrary initial phases each between a pair of corresponding initial phases in the first and second initial phase vectors, adjusts the phases of the radio frequency signals using the phase-shift circuit such that the phases of the radio frequency signals have corresponding initial phases in the third initial phase vector, and makes the adjusted radio frequency signals radiate.
摘要:
A wireless power transfer system includes: a plurality of power transmitters, each of which transmits a microwave; and a rectenna base station which receives the microwave to generate power. The rectenna base station includes: a rectenna; and control section which specifies an identification code for identifying each power transmitter and generates a command signal to change a phase of the power transmitter specified by identification code so as to increase a power value received at the rectenna. Each of the power transmitters comprises: a plurality of transmission antenna elements, each of which transmits the microwave to the rectenna base station; and a phase controller which makes phase change of the microwave based on the command signal from the phase monitor and control section of the rectenna base station if the identification code matches a stored identification code.
摘要:
The invention provides a natural fiber-reinforced thermoplastic resin injection molding having an excellent ability to discharge static electricity. The natural fiber-reinforced thermoplastic resin injection molding is obtained by injection-molding with using natural fiber-reinforced thermoplastic resin pellets as a molding feedstock containing natural fibers as reinforcing fibers, has a natural fiber content of from 20 to 60 wt %. The natural fibers have an average length of from 1.5 to 4.0 mm. The natural fiber-reinforced thermoplastic resin injection molding has an electrostatic voltage half-life, as determined by the half-life measurement method specified in JIS L 1094, of less than 40 seconds.
摘要翻译:本发明提供了具有优异的排出静电能力的天然纤维增强热塑性树脂注射成型体。 天然纤维增强热塑性树脂注射成型是通过使用天然纤维增强热塑性树脂粒料作为含有天然纤维作为增强纤维的成型原料的注射成型而获得的,天然纤维含量为20〜60重量%。 天然纤维的平均长度为1.5至4.0毫米。 天然纤维增强热塑性树脂注射成型体具有由JIS L 1094规定的半衰期测定方法测定的静电电压半衰期小于40秒。
摘要:
A colorless transparent toner including a binder resin and a layered inorganic mineral, wherein the layered inorganic mineral is an organic modified layered inorganic mineral, in which at least part of ions present between layers are modified with an organic ion.
摘要:
A structure and method for mounting a flat panel speaker are provided which are capable of reliably and accurately positioning a diaphragm in a cabinet and of improving an acoustic characteristic of the flat panel speaker. At least one first protruding portion formed in rectangular portions strikes a first side wall face of a corresponding corner portion of two side walls making up a front case and at least one second protruding portion formed in rectangular portions strikes a second side wall face of a corresponding corner portion of another side wall face of the front case, thus making it possible to properly position the diaphragm relative to the front case and, with the diaphragm being properly positioned, the diaphragm is attached to the front case with the gasket member bonded to the putting-face interposed between the diaphragm and the front case. The diaphragm comes into close contact with the front case in a manner to form a line-like boundary in a contacted portion.
摘要:
A light emitting device having a simple structure and high decorating characteristics is provided.The light emitting device comprises an emission source for outputting lights having different colors from different emission parts; and a transmitting resin having a conically shaped reflection surface for reflecting lights output from each of the emission parts, and covering the light emitting source, wherein the emission source is provided so that one or more of the emission parts are located away from a central axis of the conical shape.
摘要:
A MIMO antenna apparatus is provided with: an upper housing having slits; first feed points through which the upper housing itself is excited as first antennas; second feed points through which the slits are excited as second antennas; switch circuits, each of which is connected to one of the first feed points and one of the second feed points, and connects one of the two feed points to an A/D converter circuit-; a signal level detector circuit detecting signal levels of received radio signals; and a controller that controls the switches to change a feed point connected to the A/D converter circuit, when the detected signal level is less than or equal to a predetermined threshold value. The slits are located between the first antennas.
摘要:
An illumination control unit includes an automatic control function for automatically controlling the turning on and off of vehicle head lights depending on brightness of an environment around a vehicle. A sensitivity adjuster is installed on a lever extending from a steering column in a vehicle compartment. The sensitivity to the brightness of the environment around the vehicle at the time when the auto-on and auto-off state of the vehicle lights is changed can be adjusted with the sensitivity adjuster.
摘要:
A piezoelectric device is formed by simultaneously firing a piezoelectric ceramic mainly composed of a perovskite complex oxide represented by general formula ABO3 and electrodes mainly composed of copper. The piezoelectric ceramic is represented by Pbα−aMea[(MII1/3MV(2+b)/3)zTixZr1−x−z]O3 (wherein Me represe element, MII is an acceptor element which is a divalent metal element, and MV is a donor element which is a pentavalent metal element), and satisfies equations 0.05≦z≦0.40, 0
摘要:
A nitrogen-containing thermoelectric material, which has an element composition represented by: AlzGayInxMuRvOsNt (A) or AlzGayInxMuRvDwNm (B) (wherein M represents a transition element; R represents a rare earth element; D represents at least one element selected from elements of the Group IV or II; 0≦z≦0.7, 0≦y≦0.7, 0.2≦x≦1.0, 0≦u≦0.7, 0≦v≦0.05, 0.9 5≦s+t≦1.7, 0.4≦s≦1.2, 0≦w≦0.2 and 0.9≦m≦1.1; and x+y+z=1), and has an absolute value of a Seebeck coefficient of 40 μV/K or more at a temperature of 100° C. or more. These thermoelectric materials comprise elements having low toxicity, are excellent in a heat resistance, a chemical resistance and the like, and have a high thermoelectric transforming efficiency.
摘要翻译:一种含氮热电材料,其元素组成由下式表示:<?in-line-formula description =“In-line formula”end =“lead”?> AlzGayInxMuRvOsNt(A)<?in-line-formula description = “in-line formula”end =“tail”?>或<?in-line-formula description =“In-line Formulas”end =“lead”?> AlzGayInxMuRvDwNm(B)<?in-line-formula description =“ (其中M表示过渡元素; R表示稀土元素; D表示选自IV或II族元素中的至少一种元素; 0 <= z <= 0.7 ,0 <= y <= 0.7,0.2 <= x <= 1.0,0 <= u <= 0.7,0 <= v <= 0.05,0.9 5 <= s + t <= 1.7,0.4 <= s < 1.2,0 <= w <= 0.2和0.9 <= m <= 1.1; x + y + z = 1),并且在100°的温度下具有40Ω/ K以上的塞贝克系数的绝对值 C.或更多。 这些热电材料包含低毒性,耐热性,耐化学性等优异的元件,具有高的热电转换效率。