64results about How to "Economical and cost-effective" patented technology

The present invention provides apparatus for an imaging system comprising a multitude of imaging elements upon a substrate. In some embodiments the substrate may be approximately round with a radius of approximately one inch. Various methods relating to using and producing an imaging system are discussed.

The present invention provides apparatus for an imaging system comprising a multitude of imaging elements upon a substrate. In some embodiments the substrate may be approximately round with a radius of approximately one inch. Various methods relating to using and producing an imaging system are discussed.

The invention provides an intelligent high-voltage electric switch device. The device comprises a high-voltage electric switch, a high-voltage working power supply, a distribution transformer, a low-voltage measuring device, an over-current protective device, a remote automatic control terminal, a power substation computer connected with a communication module, a power administrator mobile phone and a mobile communication base station, wherein the remote automatic control terminal comprises a singlechip circuit, a power circuit, a transceiving communication module, and an output control signal circuit; the singlechip circuit is connected with the output control signal circuit and the transceiving communication module; the high-voltage working power supply is connected with the power circuit, a switching-off loop and a switching-on loop respectively; the output control signal circuit is connected to the switching-off loop and the switching-on loop respectively; the singlechip circuit is connected with the over-current protective device; and the mobile communication base station provides network service for the communication module, the power administrator mobile phone and the transceiving communication module. The device has the advantages of convenient use, intelligent management and high operation efficiency.

Micro-droplet delivery devices and methods are described where the device may comprise a piezoelectric actuator having a piezoelectric chip that is operatively coupled to a drug package under a preloading force. The actuator is configured to generate an acoustic pressure within the drug package to dispense droplets of an agent from an aperture, e.g., to the corneal surface of the eye. The piezoelectric actuator can be coupled or decoupled from the drug package.

The invention discloses a preparation method of a graphene / aluminum composite material. The preparation method specifically includes the following steps that graphene oxide powder is evenly dispersed in an alcohol solution, and a graphene oxide alcoholic solution is prepared after emulsification and ultrasonic treatment; aluminum powder is slowly added under stirring, temperature is controlled to be not higher than room temperature, stirring speed is controlled to be 100-1000 r / min, stirring time lasts for 1-5 h, and the uniform graphene oxide alcoholic solution containing the aluminum powder is obtained; solid and liquid separation is performed through the filtering technology and the centrifugal technology, and graphene oxide / aluminum dry powder is obtained after separated paste solid is frozen and dried; and the dry powder is subjected to heat reduction under Ar / H2 mixed atmosphere, and finally the graphene / aluminum composite material is prepared. The graphene / aluminum composite material prepared through the method has the beneficial effects of being high in strength, low in heat expansion coefficient and the like, and the specific stiffness coefficient and the special strength coefficient are remarkably increased. The method is simple in technology and efficient, industrialized production and application can be easily achieved.

The invention relates to an online monitoring system for the working condition of power distribution equipment. An online monitoring and early warning system for the working conditions of power distribution equipment. For a power supply station and its substations, the power supply station is equipped with an early warning computer, and a wireless network communication base station is established. Each distribution transformer is equipped with a power distribution equipment detection and early warning system. terminal, the power distribution equipment detection and early warning terminal is equipped with a wireless transmission and reception communication module, and the power distribution equipment detection and early warning terminal is wirelessly connected to the wireless network communication base station through the wireless transmission and reception communication module; the early warning computer of the power supply station is connected through a The receiver with the two-way communication module is connected to the wireless network communication base station; the on-line monitoring and early warning system for the working condition of the power distribution equipment is formed by the early warning computer of the power supply station, the detection early warning terminal of the power distribution equipment and the wireless network communication base station. The implementation of the invention helps to provide a highly reliable and high-quality power consumption environment for the end users of the power distribution system.