摘要:
The object of this invention is to prevent a defect which occurs in overhead or vertical welding when gravity causes molten metal to drip downward so that the top of the gap has an undercut and the bead has a bulge along the weld line (i.e., a convex bead is created). During overhead or vertical welding, a unidirectional current is made to flow in the molten pool in the direction of the weld line. When the aforesaid current flows in conjunction with a magnetic field, a Lorentz force is exerted in the molten pool in an upward direction towards the upper top side of the groove. This prevents the molten metal from dripping downward and improves the shape of the bead.
摘要:
Status monitoring of a wind turbine is automatically performed, and evaluation of that status is quantitatively performed according to an appropriate criterion. Provided is a wind turbine monitoring device including a first storage unit in which a diagnostic data file is stored; a second storage unit in which a normal data file is stored; a diagnostics setting unit that that extracts and sets a plurality of datasets to be used in diagnosis from the first storage unit and that extracts and sets a plurality of datasets to be used in diagnosis from the second storage unit; an index-value calculating unit that calculates status index values representing the status of the wind turbine using a statistical calculation method, on the basis of the set datasets in the diagnostic data file and the datasets in the reference data file; a fault determining unit that evaluates the status of the wind turbine on the basis of the status index values; and a notification unit that notifies the result of this evaluation.
摘要:
A fixing device for heating and pressing a recording medium carrying an unfixed toner image or an unfixed ink image to fix the unfixed toner image or the unfixed ink image on the recording medium, includes a heating roller which has a heating source and has an endless peripheral surface moves around an axis, a pressure roller which is pressed onto the peripheral surface of the heating roller, and presses the recording medium passing between the pressure roller and the heating roller onto the peripheral surface of the heating roller, and plural cleaning sections which are provided to make contact with the heating roller. At least one of the cleaning sections is set, at a portion making contact with the heating roller, to have a relatively negative potential with respect to a surface potential of the heating roller.
摘要:
The efficiency of a thin film Si solar battery is improved. Between a back face electrode and a transparent conductive film provided on a front face side of the back face electrode, a refractive index adjustment layer is interposed made from a material that has a lower refractive index than that of the transparent conductive film. For example when the transparent conductive film is GZO, SiO2 is interposed between the transparent conductive film and the back face electrode made from Ag. As a result light that penetrates into and is absorbed at the back face electrode is reduced, and the reflectivity of light at the back face electrode is improved.
摘要:
A light scattering film having the structure which guides electrical signal to a desired position and scatters incident light and the surface of which is substantially flat, and a photoelectric device using the same. The light scattering film includes a medium made of transparent conductive material and a light scatterer embedded in the medium. The light scattering film realizes conductivity and the light-scattering characteristic by single component. It is not necessary to make the texture of a surface with concavity and convexity deliberately to achieve the light-scattering characteristic. Desirably, the surface is substantially flat. When a semiconductor layer is formed on the surface, the defects are suppressed because of the flatness of the surface. The photoelectric device having the light scattering film and the semiconductor device on the surface of the film can achieve high photoelectric conversion efficiency.
摘要:
A semiconductor device has an n−-semiconductor layer and p+-diffusion regions each having a depth of 14 to 20 μm (design value) selectively formed in the n− semiconductor layer. With the entire surface of the chip irradiated with light ions, such as He ions, a lifetime killer is introduced from a position d2 shallower than a position d1 of a p-n junction surface, formed from the n−-semiconductor layer and the p+-diffusion regions, to a position d3 deeper than the position d1 to form a short-lifetime region over the entire chip. The irradiation is carried out so that the light ion irradiation half width is not more than the depth of the p+-diffusion regions and a position of a peak of the light ions becomes deeper than the light ion irradiation half width and within the range between 80% and 120% of the depth of the p+-diffusion regions. Thus, in a semiconductor device such as a converter diode, a capability for a high decay rate of a reverse recovery current di/dt can be brought sufficiently high to such an extent that the device can withstand a lightening surge with a low forward voltage VF being kept low.
摘要:
Provided is a taste-improving agent that suppresses the unpleasant taste of potassium, such as harshness, irritativeness, and bitterness without reducing the salty taste of a potassium-containing food or drink. The taste-improving agent for a potassium-containing food or drink comprises a lactic acid-fermented yeast extract that is obtainable by fermenting a yeast extract with a lactic acid bacterium and contains 7.5 (w/w) % or more of lactic acid relative to the solid content of the yeast extract.
摘要:
There is provided a fixing device including: a heating member that, while rotating, heats and fixes a developer image onto a recording medium; a pressing member that nips and presses the recording medium between itself and the heating member; an external heating member configured to make contact with an outer surface of the heating member and to move away from the outer surface of the heating member, the external heating member making contact with the outer surface of the heating member and heating the heating member; and a moving section that computes a contact position of a leading edge of the recording medium and the outer surface of the heating member, and moves the external heating member such that the external heating member contacts the outer surface of the heating member based on the computed position.
摘要:
A fixing device includes: a first rotating member; a second rotating member that extends along the first rotating member, sandwiches a recording medium with a toner image formed thereon between the first and second rotating members, rotates together with the first rotating member, and heats the recording medium to fix the toner image on the recording medium; a heating device whose circumferential surface circularly moves while contacting an external circumferential surface of the second rotating member, and the heating device heats the second rotating member; a temperature detecting device disposed to face the external circumferential surface of the second rotating member without contacting the external circumferential surface to detect a temperature thereof; and a cleaning device cleaning the circumferential surface of the heating device and disposed between the heating device and the temperature detecting device along the surface of the second rotating member.
摘要:
A light scattering film having the structure which guides electrical signal to a desired position and scatters incident light and the surface of which is substantially flat, and a photoelectric device using the same. The light scattering film includes a medium made of transparent conductive material and a light scatterer embedded in the medium. The light scattering film realizes conductivity and the light-scattering characteristic by single component. It is not necessary to make the texture of a surface with concavity and convexity deliberately to achieve the light-scattering characteristic. Desirably, the surface is substantially flat. When a semiconductor layer is formed on the surface, the defects are suppressed because of the flatness of the surface. The photoelectric device having the light scattering film and the semiconductor device on the surface of the film can achieve high photoelectric conversion efficiency.