Abstract: A notch detecting method for detecting a notch defined in an outer circumferential portion of a wafer includes a placing step of placing the wafer on a rotary table, an image capturing step of acquiring an image of the outer circumferential portion of the wafer, a contour data acquiring step of acquiring contour data including coordinates of a contour of the wafer, a hypothetical circle calculating step of calculating a hypothetical circle that approximates the contour of the wafer, an irregularly shaped area determining step of determining whether an irregularly shaped area exists in the outer circumferential portion of the wafer or not, and a first notch determining step of determining whether the irregularly shaped area is the notch or not.

Abstract: A surface-treated metal material of the present invention has a composite film on the surface of a metal material. The composite film includes an organic silicon compound (W) having cyclic siloxane bonds, at least one metal compound (X) selected from a group consisting of a titanium compound and a zirconium compound, a phosphate compound (Y) and a fluorine compound (Z). In each of the components of the composite film, the ratio of XS/WS is from 0.06 to 0.16, where WS is a solid mass of Si derived from the organic silicon compound (W) and XS is a solid mass of at least one metal component selected from a group consisting of Ti and Zr included in the metal compound (X); the ratio of YS/WS is from 0.15 to 0.31, where WS is the solid mass of Si and YS is a solid mass of P derived from the phosphate compound (Y); and the ratio of ZS/WS is from 0.08 to 0.50, where WS is the solid mass of Si and ZS is a solid mass of F derived from the fluorine compound (Z).

Abstract: This surface-treated metal material includes a composite film obtained by applying a metal surface treatment agent on a surface of a metal material and drying the metal surface treatment agent, the metal surface treatment agent containing: an organic silicon compound (W) obtained by combining a silane coupling agent (A) containing one amino group in a molecule and one glycidyl group in a molecule, at a solid content mass ratio [(A)/(B)] of 0.7 to 1.7; at least one kind of fluorine compound (X) selected from titanium hydrofluoric acid and zirconium hydrofluoric acid; a phosphoric acid (Y); a vanadium compound (Z); and at least one kind of lubricant (J).

Abstract: In a marine diesel engine equipped with a plurality of turbochargers, when the turbochargers are switched from single operation to parallel operation or from parallel operation to single operation, surging in the turbocharger to be started or stopped is prevented.

Abstract: In an acceleration tube conditioning apparatus for performing a conditioning process on an acceleration tube when a high frequency power signal to be supplied to an acceleration tube is generated by a high frequency power supply, a power value collecting section collects a traveling wave power value and a reflection wave power value from a sensor which monitors the traveling wave power signal and the reflection wave power signal. A high frequency calculating section calculates a resonance frequency of the acceleration tube based on the traveling wave power value and the reflection wave power value. A high frequency adjusting section determines a high frequency value based on one of the traveling wave power value and the reflection wave power value as a selection power value, and a high frequency power supply control unit controls the high frequency power supply based on the high frequency value.

Abstract: A transmission type dosimeter includes electrodes configured to collect charged particles ionized with radiation, a body, in a cavity of which, the electrodes are arranged, and a lid configured to seal the cavity in the body. The lid includes a fixing frame section fixed on the body, and a transmission section formed with the fixing frame section as a unit body. The transmission section is thinner than the fixing frame section.

Abstract: This surface-treated metal material includes a composite film obtained by applying a metal surface treatment agent on a surface of a metal material and drying the metal surface treatment agent, the metal surface treatment agent containing: an organic silicon compound (W) obtained by combining a silane coupling agent (A) containing one amino group in a molecule and one glycidyl group in a molecule, at a solid content mass ratio [(A)/(B)] of 0.7 to 1.7; at least one kind of fluorine compound (X) selected from titanium hydrofluoric acid and zirconium hydrofluoric acid; a phosphoric acid (Y); a vanadium compound (Z); and at least one kind of lubricant (J).

Abstract: A radiotherapy system includes: a waveguide, an adjustable waveguide, and a non-reciprocal circuit element. The waveguide transmits a high-frequency wave from a high-frequency power source to an acceleration tube. The adjustable waveguide is included in said waveguide and transforms a part of said waveguide. The non-reciprocal circuit element is provided between said acceleration tube and said adjustable waveguide in said waveguide. Said acceleration tube accelerates charged particles for generating therapeutic radiation by using said high-frequency wave.

Abstract: The present invention provides a metal material given a chrome-free surface treatment satisfying all of the requirements of corrosion resistance, heat resistance, fingermark resistance, conductivity, coatability, and blackening resistance at the time of working, which was difficult to achieve with conventional chromate-free technology. The chromate-free surface treated metal material of the present invention is comprised of a metal material on the surface of which is coated and dried an aqueous metal surface treatment agent comprising an organic silicon compound (W), obtained by blending a silane coupling agent (A) containing one amino group in its molecule and a silane coupling agent (B) containing one glycidyl group in its molecule in a solid weight ratio [(A)/(B)] of 0.5 to 1.7, at least one type of fluorocompound (X) selected from fluorotitanic acid or fluorozirconic acid, phosphoric acid (Y), and a vanadium compound (Z) so as to form a composite coating containing the different ingredients.

Abstract: A radiotherapy system includes: a waveguide, an adjustable waveguide, and a non-reciprocal circuit element. The waveguide transmits a high-frequency wave from a high-frequency power source to an acceleration tube. The adjustable waveguide is included in said waveguide and transforms a part of said waveguide. The non-reciprocal circuit element is provided between said acceleration tube and said adjustable waveguide in said waveguide. Said acceleration tube accelerates charged particles for generating therapeutic radiation by using said high-frequency wave.

Abstract: In an acceleration tube conditioning apparatus for performing a conditioning process on an acceleration tube when a high frequency power signal to be supplied to an acceleration tube is generated by a high frequency power supply, a power value collecting section collects a traveling wave power value and a reflection wave power value from a sensor which monitors the traveling wave power signal and the reflection wave power signal. A high frequency calculating section calculates a resonance frequency of the acceleration tube based on the traveling wave power value and the reflection wave power value. A high frequency adjusting section determines a high frequency value based on one of the traveling wave power value and the reflection wave power value as a selection power value, and a high frequency power supply control unit controls the high frequency power supply based on the high frequency value.

Abstract: The invention relates to a CVJ boot in which contact pressure of crest portions closer to a large-diameter mounting portion on the compressed side of a bellows portion is reduced when slant faces forming a root portion of a bending point obtained by the S-shaped bend come into contact with each other, thereby increasing durability.

Abstract: A highly corrosion-resistant, highly alkali-resistant, and very paintable chromate film on the surface of a steel substrate coated with Zn-containing metal is formed by coating the substrate with an aqueous chromate bath and drying into place, preferably at a substrate temperature of 60.degree. to 200.degree. C., without a water rinse. The bath contains Cr.sup.6+, Cr.sup.3+, phosphate ions, water-soluble glycol ether (WSGE) and/or poly{vinyl alcohol} (PVA), and optionally silica sol, in amounts giving ratios of Cr.sup.3+ /Cr.sup.6+ =0.25 to 4.0, PO.sub.4 /total Cr=0.1 to 2.5, and (WSGE+PVA)/Cr.sup.6+ =0.1 to 0.5 in the bath.

Abstract: A zinc-plated metallic material resistant to corrosion at elevated temperatures comprising a metallic material; a plating layer consisting of zinc or zinc alloy containing 70% by weight or more of zinc; and a coating layer on the plating layer comprising 10 to 5,000 mg. of magnesium oxide or hydrated magnesium oxide and 50 to 5,000 mg. of chromium oxide or hydrated chromium oxide per square meter of the coating layer.

Abstract: A high frequency coaxial connector having a bayonet-tight insertion arrangement for use in a high frequency coaxial circuit, is constructed with an outer installation and an inner installation. The outer installation comprises an external locking sleeve, an internal contact sleeve, a cylindrical insulation body tightly inserted in a contact portion of the internal contact sleeve, an outer insulation sleeve, and a coil spring, one end of which is directly brought into contact with the rear edge of a stopper portion of the internal contact sleeve, and the other end of which is directly brought into contact with the rear edge inner wall of the outer insulation sleeve. The inner installation comprises of a unitarily constructed central contact pin, an insulation plate having a front surface directly brought into contact with a rear edge of the contact pin, and an inside sleeve receiving the insulating plate and the insulating body of the coaxial cable.