摘要:
A communication apparatus including a physical layer processing unit that transmits data to a communication medium and a lower-layer processing unit that performs transmission control is provided. The transmission control includes at least one of aggregated-frame transmission control in which a data frame is supplied to the physical layer processing unit as an aggregated frame by aggregating the data frame with at least one other data frame, and single-frame transmission control in which the data frame is supplied to the physical layer processing unit as a single frame. The lower-layer processing unit determines whether to supply the data frame to the physical layer processing unit as the aggregated frame by performing the aggregated-frame transmission control or as the single frame by performing the single-frame transmission control based on a type of data contained in a payload of the data frame.
摘要:
An agricultural chemical composition which enables a wide range of herbicidal compounds including ones showing phytotoxicity to crop plants, etc. upon mere application to exhibit a sufficient herbicidal effect and to show reduced or no phytotoxicity to the crop plants. The agricultural chemical composition comprises (A) a herbicidal compound selected from the group consisting of sulfonylurea compounds, sulfonamide compounds, chloroacetanilide compounds, thiocarbamate compounds, pyrimidinyloxy(thio)benzoic acid compounds, tetrazolinone compounds, pyrazole compounds, cyclohexanedione compounds, phenoxycarboxylic acid compounds, oxazinone compounds, and difluoromethanesulfonylanilide compounds or salts thereof and (B) a compound selected among benzoic acid compounds.
摘要:
In thrust needle bearings 16A and 16B, radial needle bearings 15A and 15B, and a shaft 14, each part is treated to have a nitrogen concentration of 0.3 weight % or more, and a Vickers hardness of Hv=653 to 832. Therefore, abrasion of the contacting portions is minimal, and it is possible to suppress premature abrasion, and extend the life, even if used under severe lubrication conditions.
摘要:
It is an object of the invention to provide a needle bearing which can prevent occurrence of flake and seizure in the bearing parts even under such severe lubricating condition as provided by a compressor for a car air conditioner or a planetary unit for an automatic transmission. The needle bearing is structured by barrel grinding the raceway surface of a ring and the surface of a rolling body without using a ceramic-related abrasive such as alumina or silicon carbide.