Abstract: The present invention suppresses leakage of combustion gas from a contact surface. A cylinder head (20) is attached to a cylinder block. The surface (26) of the side of the cylinder head (20) that is attached to the cylinder block includes a first region (AH1) and a second region (AH2) that has higher hardness than the first region (AH1).

Abstract: The present invention suppresses leakage of combustion gas from a contact surface. A cylinder head (20) is attached to a cylinder block. The surface (26) of the side of the cylinder head (20) that is attached to the cylinder block includes a first region (AH1) and a second region (AH2) that has higher hardness than the first region (AH1).

Abstract: An engine oil state control device for controlling a fuel mixture ratio of a fuel mixed in an engine oil of an engine on which a predetermined combustion control is performed includes comprising a fuel mixture ratio acquisition part configured to acquire the fuel mixture ratio, and an oil temperature rise control part configured to perform an oil temperature rise control for increasing an evaporation rate of the fuel mixed in the engine oil if the fuel mixture ratio is equal to or greater than a first threshold.

Abstract: A projecting apparatus includes an image generating section configured to generate a masking-processed image by combining an input image and a mask drawing image including a mask region and a non-mask region and a projecting section configured to project the masking-processed image. The image generating section is at least capable of executing, on a first masking-processed image including a non-mask image corresponding to the non-mask region in a first projecting position, moving masking processing for generating a second masking-processed image obtained by moving the non-mask image from the first projecting position to a second projecting position or capable of executing, on a first masking-processed image including the non-mask image having a first dimension, enlarging or reducing masking processing for generating a second masking-processed image obtained by enlarging or reducing the non-mask image from the first dimension to a second dimension.

Abstract: An engine oil state control device for controlling a fuel mixture ratio of a fuel mixed in an engine oil of an engine on which a predetermined combustion control is performed includes comprising a fuel mixture ratio acquisition part configured to acquire the fuel mixture ratio, and an oil temperature rise control part configured to perform an oil temperature rise control for increasing an evaporation rate of the fuel mixed in the engine oil if the fuel mixture ratio is equal to or greater than a first threshold.

Abstract: A projecting apparatus includes an image generating section configured to generate a masking-processed image by combining an input image and a mask drawing image including a mask region and a non-mask region and a projecting section configured to project the masking-processed image. The image generating section is at least capable of executing, on a first masking-processed image including a non-mask image corresponding to the non-mask region in a first projecting position, moving masking processing for generating a second masking-processed image obtained by moving the non-mask image from the first projecting position to a second projecting position or capable of executing, on a first masking-processed image including the non-mask image having a first dimension, enlarging or reducing masking processing for generating a second masking-processed image obtained by enlarging or reducing the non-mask image from the first dimension to a second dimension.

Abstract: A resin composition having a high refractive index and low dispersion characteristics including a carbonate residue, a phosphonic acid residue and a dihydric phenol residue, wherein the mol fractions of the phosphonic acid residue and the carbonate residue satisfy 1>(a)/{(a)+(b)}≧0.5 wherein (a) represents the number of moles of the phosphonic acid residues, and (b) represents the number of moles of the carbonate residues.

Abstract: According to the present invention, a resin composition having a high refractive index and low dispersion characteristics is provided. THE resin composition comprises a carbonate residue, a phosphonic acid residue represented by the following structural formula (1), and a dihydric phenol residue represented by the following structural formula (2), wherein the mol fractions of the phosphonic acid residue and the carbonate residue satisfy equation (3).

Abstract: The present invention provides Internet contents providers with a carrier-free authentication method for mobile terminals that use the contents of an unofficial website. The parameter attached to the URL differs each time or within a specific period of time, and moreover, differs from user to user. Therefore, by using this method, even if all the information—URL, user ID and password—should leak out to a third-party user who poses as a legitimate user, a new parameter would be sent to the fraudulent user. The moment the new parameter is sent, the former parameter becomes invalidated. The legitimate user does not know the new parameter that is now in the hands the fraudulent user. Therefore, the URL that the legitimate user accesses will contain the former parameter. When this kind of access occurs, it would be judged as a double log-in, and access by both the fraudulent and legitimate user becomes invalidated.