摘要:
The present invention relates to a high-power single-mode semiconductor laser device, in which a first conductivity-type cladding layer is formed on a semiconductor substrate. An active layer is formed on the first conductivity-type cladding layer, and a second conductivity-type cladding layer is formed on the active layer, with a ridge protruding upward. The invention has corrugated parts formed on upper surfaces of the second conductivity-type cladding layer on both sides next to the ridge for scattering light in order to suppress high order mode oscillation.
摘要:
A sash for windows and doors equipped with an anti-dewing hot wire is provided. A double-layered glass, which is included an indoor sheet of glass and an outdoor sheet of glass spaced from each other by a spacer and filled with a desiccant material is fixedly installed on a sash frame. The frame, which is formed with a hollow tube with a reception groove in one surface and the double-layered glass sealed with sealant, comprises the hot wire, for generating heat by means of supplied power, attached along an edge of an inner surface of the indoor sheet of glass, a through hole for passing an electric wire electrically connected to the hot wire, formed through a designated portion of the spacer located on the lower portions of the indoor and outdoor sheets of glass of the double-layered glass, and a controller, which is connected to the electric wire for controlling the output of a power supply unit for supplying a driving voltage to the hot wire according to a user's manipulation signal, located in the hollow of a lower frame member of the sash frame. The sash effectively prevents the edge and inner surface of the indoor sheet of glass from dewing, and improves thermal insulation effects.
摘要:
A composite material includes a polymer matrix, a polymerizer, and a plurality of capsules containing a corresponding activator for the polymerizer. The composite material can also include an adhesion promoter, and the polymerizer can be phase separated from the polymer matrix. The composite material can be made by dispersing the polymerizer and capsules into the polymer matrix. These composite materials can exhibit improved environmental stability, and can be used with a wider variety of activators.
摘要:
A self-healing coating includes a polymer matrix, a polymerizer, and a set of capsules containing a corresponding activator for the polymerizer. The polymerizer may be present in another set of capsules, or the polymerizer may be phase separated from the polymer matrix. The coating may be prepared by depositing a coating composition on a substrate and solidifying the coating composition, where the coating composition includes the polymerizer, the activator capsules and a matrix precursor. A combination of polymerizer capsules and activator capsules may be part of a kit, which may be used to provide self-healing properties to a coating. The polymerizer and the activator may be wet-curable, and coatings containing the polymerizer and activator may be able to self-heal when in contact with water.