摘要:
A partial discharge detection apparatus of an electrical rotating machine includes a metal frame connected to a stator frame of the electrical rotating machine, a power line connected to one of a stator winding corresponding to one phase of three phases in the metal frame and a neutral point lead line connected to a neutral point of three-phase stator windings and arranged in the metal frame to propagate a partial discharge signal generated by degradation of the stator winding, a sensor including a rod antenna which is installed around the power line or neutral point lead line in the metal frame to electrostatically and magnetically induce the partial discharge signal propagated to the power line or neutral point lead line, and a detector which receives, via a signal lead line, a signal generated in the sensor and detects partial discharge by signal processing.
摘要:
This invention provides masterbatch (MB) comprising at least a colorant and polyester resin, wherein the glass transition temperature (Tg) and the softening point (Sp) of such polyester resin satisfy the correlations defined by formulae (1) and (2): 4Tg−170≦Sp≦4Tg−110 (1); and 90≦Sp≦120 (2), and toner using such masterbatch. The toner prepared from such masterbatch comprising base resin having excellent heat resistance and good dispersibility can produce images having stable and even glossiness, brilliant color, and a wide fusing temperature range.
摘要:
A two-component developer is provided in which the reduction of the hot offset occurrence temperature due to detachment of the coating layer, image density insufficiency, image fogging and toner scattering and the like can be suppressed. In the two-component developer including a toner and a carrier, the content of acrylic resin in a coating layer of the carrier is in a range from 5 to 50% by weight based on the total amount of the coating layer, and the dielectric loss (tan δ) is in the range from 4.0×10−3 to 15.0×10−3. By using the two-component developer, the reduction of the hot offset occurrence temperature in a fixing apparatus can be prevented. Further, image density insufficiency, image fogging and toner scattering and the like can be suppressed, with a result that images having high quality and sufficient image density can be obtained.
摘要:
A method for manufacturing a nitride film including a high-resistivity GaN layer includes a step of allowing a Group-III source gas containing an organic metal compound, a Group-V source gas containing ammonia, a carrier gas for the Group-III source gas, and a carrier gas for the Group-V source gas to flow over a predetermined monocrystalline wafer maintained at 1,000° C. or more and also includes a step of epitaxially growing a nitride film, including a GaN layer, on the monocrystalline wafer by a vapor phase reaction of the source gases. At least one of the carrier gases contains nitrogen while the wafer temperature is being increased before the reaction is carried out. At least one of the carrier gases contains hydrogen and nitrogen and has a total hydrogen and nitrogen content of 90 percent by volume or more in at least one part of the epitaxially growing step.
摘要:
In the production of channel etch type bottom gate thin film transistors, etching damage in a channel etch step is prevented to improve the transistor performance. The channel etch is performed using non-ionic excited species, such as hydrogen radicals and fluorine radicals, generated by contact-decomposition reaction which utilizes a metal heated by electric resistance heating. Alternatively, in place of the channel etch, a portion of the source/drain semiconductor thin film immediately above the channel is nitrided by a non-ionic nitrogen-containing decomposition product that is produced by contacting molecules of a chemical substance containing nitrogen atoms with a metal heated by electric resistance heating to decompose the chemical molecules.
摘要:
A superconducting junction device which is easily manufactured, multifunctional, and utilizes the superconducting Josephson effects is described. A first junction (Josephson junction) and a second junction (Josephson junction) are disposed o a substrate across a coupling portion of a dielectric. The first junction comprises a first upper electrode, a first barrier layer and a first lower electrode. The second junction comprises a second upper electrode, a second barrier layer and a second lower electrode. The first lower electrode and the second lower electrode are connected in series via a connecting electrode. A superconducting reflecting wall which is connected via the connecting electrode is provided around the two Josephson junctions including the coupling portion.
摘要:
There is provided a precondition generating apparatus in which a storage stores a set “S” of logical expressions; a creating unit creates a first logical expression being a logical product of the “S”, logical expressions of a program and a negation of a logical expression indicating a postcondition; a solver finds a solution that makes the first logical expression true and specifies a set of clauses that cannot be simultaneously true in the first logical expression if not found; wherein the creating unit sets relaxing variables for the logical expressions belonging to the set “S” in the set of clauses wherein the logical expressions indicates a precondition of the program, generates a second logical expression by alleviating the clauses of logical expressions corresponding to the relaxing variables in the first logical expression, and applies same process as in the first logical expression to the second logical expression.
摘要:
There is provided a PDP including a front substrate and a rear substrate. The front substrate and the rear substrate are disposed via discharge spaces. The discharge spaces are filled with a discharge gas. In the discharge spaces or in a space permeable to the discharge spaces, a copper-ion-exchanged zeolite adsorbent is disposed which is in an activated state.
摘要:
A first aim of the present invention is to provide a PDP capable of stably delivering favorable image display performance and being driven with low power, by improving the surface layer to improve secondary electron emission characteristics and charge retention characteristics. A second aim of the present invention is to provide a PDP, in addition to having the above-mentioned effects, capable of reducing an aging time. In order to achieve these aims, a crystalline film of a film thickness of approximately 1 μm is disposed as a surface layer (protective film) 8 on a surface of the dielectric layer 7 that faces a discharge space. The surface layer 8 is made by adding Sr to CeO2, and a concentration of Sr in the surface layer 8 is in a range of 11.8 mol % to 49.4 mol % inclusive. With this structure, an attempt is made to improve the secondary electron emission characteristics and aging characteristics in the surface layer 8.
摘要:
A first aim of the present invention is to provide a PDP capable of stably delivering favorable image display performance and being driven with low power, by improving the surface layer to improve secondary electron emission characteristics and charge retention characteristics. A second aim of the present invention is to provide a PDP capable of displaying high-definition images even when the PDP is driven at high speed by preventing the discharge delay during driving. In order to achieve these aims, the surface layer (protective film) 8 of a film thickness of approximately 1 μm is disposed on a surface of the dielectric layer 7 that faces a discharge space 15. The surface layer 8 includes CeO2 as the main component and Ba, and a concentration of Ba in the surface layer 8 is in a range of 16 mol % to 29 mol % inclusive. With this structure, an electron level having a certain depth is introduced in a forbidden band in the surface layer 8, or an electron level of a valence band is elevated to narrow a band gap. An attempt is made to improve secondary electron emission characteristics and charge retention characteristics in this manner.