Abstract: The present invention discloses a method and equipment for saving energy. The method comprises the following steps: the first network node acquires load information of the second network node next to the first and modifies energy saving state according to its own load information and that of said second network node; said first and second network nodes send information on indication for saving energy state to the adjacent third network node and inform the information of modifying energy saving state to said third network node based on said information on indication for saving energy state. Embodiments of the present invention optimize resource utilization rate of the whole network.

Abstract: Extremely minute amounts of live pathogens are rapidly detected using a piezoelectric cantilever sensor. A single pathogen is detectable in about 30 minutes. Pathogen-specific antibodies are immobilized on the sensor surface. The sensor is exposed to a medium that potentially contains the target pathogen. When target pathogens are contained in the medium, both dead and live pathogen cells bind to the immobilized antibody on the sensor surface. The attached target pathogen cells are exposed to a pathogen discriminator capable of discriminating between live cells and dead cells by increasing the mass of live cells. Example pathogens include Escherichia coli, Listeri monocytogene, and Salmonella enteritidis. Example antibodies include those that bind to the pathogenic bacteria designated as ATCC 43251, ATCC 700375, and ATCC 31194. Example pathogen discriminators include intracellular pH indicating molecules.

Abstract: A change in impedance of a electromechanical resonating sensor is utilized to detect and/or measure a change in mass accumulated on the sensor. The impedance is monitored at a fixed frequency. The fixed frequency may be at or near the resonance frequency of the sensor. In various configurations, the sensor comprises a quartz crystal microbalance sensor or a piezoelectric cantilever sensor.

Abstract: Extremely minute amounts of live pathogens are rapidly detected using a piezoelectric cantilever sensor. A single pathogen is detectable in about 30 minutes. Pathogen-specific antibodies are immobilized on the sensor surface. The sensor is exposed to a medium that potentially contains the target pathogen. When target pathogens are contained in the medium, both dead and live pathogen cells bind to the immobilized antibody on the sensor surface. The attached target pathogen cells are exposed to a pathogen discriminator capable of discriminating between live cells and dead cells by increasing the mass of live cells. Example pathogens include Escherichia coli, Listeri monocytogene, and Salmonella enteritidis. Example antibodies include those that bind to the pathogenic bacteria designated as ATCC 43251, ATCC 700375, and ATCC 31194. Example pathogen discriminators include intracellular pH indicating molecules.