摘要:
A weathering test method comprising making active oxygen and light simultaneously act on a test piece, a weathering test method comprising successive and/or alternate steps of making active oxygen and light simultaneously act on a test piece and making at least one of light, oxygen, and water to act on the test piece, and apparatus for carrying out the methods are disclosed. In evaluating weatherability of organic materials, articles made of organic materials or articles coated with organic materials, the methods and apparatus achieve acceleration of deterioration of test pieces to greatly reduce the testing time.
摘要:
A weathering test method comprising making active oxygen and light simultaneously act on a test piece, a weathering test method comprising successive and/or alternate steps of making active oxygen and light simultaneously act on a test piece and making at least one of light, oxygen, and water to act on the test piece, and apparatus for carrying out the methods are disclosed. In evaluating weatherability of organic materials, articles made of organic materials or articles coated with organic materials, the methods and apparatus achieve acceleration of deterioration of test pieces to greatly reduce the testing time.
摘要:
A weathering test method comprising making active oxygen and light simultaneously act on a test piece, a weathering test method comprising successive and/or alternate steps of making active oxygen and light simultaneously act on a test piece and making at least one of light, oxygen, and water to act on the test piece, and apparatus for carrying out the methods are disclosed. In evaluating weatherability of organic materials, articles made of organic materials or articles coated with organic materials, the methods and apparatus achieve acceleration of deterioration of test pieces to greatly reduce the testing time.
摘要:
A ventilation fan and light (10) is disclosed having a housing (12) and a light kit (13). The housing includes a housing box (15) with a conventional fan scroll (17) having an electric fan (16) mounted therein. The housing also includes a ceiling plate (21) configured to cover the housing box from view. The ceiling plate includes a decorative features (22) and an array of air intake ports (23) extend through the ceiling plate and positioned within a decorative feature to camouflage the air intake port from view. The light kit includes a plurality of light arms (26) which terminate with a light housing (27) and diffuser (28). The spacial relationship between the ceiling plate and the majority of the light kit structure further obscures the air intake ports from view, prevents the build up of heat within the housing, and creates a better airflow pattern within the room in which the light is mounted.
摘要:
7α-Hydroxy-pregn-4-en-3-one-20-carbaldehyde, a production method thereof and a method for producing 7α,21 -dihydroxy-20-methyl-pregn-4-en-3-one, which is useful as a synthetic intermediate for pharmaceuticals such as squalamine and the like, efficiently at high purity from the carbaldehyde.
摘要:
A unit arrangement part comprises a chemical cabinet on its lowermost part, while coating units for forming a resist film on a substrate and developing units for developing the substrate after exposure are arranged on four corners of an apparatus above the chemical cabinet. Further, multistage thermal processing units for thermal-processing the substrate are arranged on front and rear portions of the apparatus above these wet processing units. A cleaning unit for supplying a cleaning liquid such as pure water and cleaning the substrate is arranged on a front side of the apparatus between the coating units as a substrate processing unit. Thus provided is a substrate processing apparatus having excellent workability in maintenance with a high degree of freedom in arrangement of processing units.