Abstract:
A method of depositing single particles onto a target includes loading a particle suspension to a droplet dispenser having a suspension reservoir and a nozzle section, detecting particles in the nozzle section, testing a single particle condition of the droplet dispenser, and determining whether an ejection region of the nozzle section includes one single particle. The method further includes operating the droplet dispenser for dispensing a droplet such that the droplet is dispensed onto the target if the single particle condition is fulfilled, or the droplet is dispensed into a collection reservoir if the single particle condition is not fulfilled. The step of testing the single particle condition further includes determining whether a sedimentation region adjacent to the ejection region is free of particles. A dispenser for performing the method is also provided.
Abstract:
A method of biosensor-based detection of toxins comprises the steps of providing at least one time-dependent control signal generated by a biosensor in a gas or liquid medium, and obtaining a time-dependent biosensor signal from the biosensor in the gas or liquid medium to be monitored or analyzed for the presence of one or more toxins selected from chemical, biological or radiological agents. The time-dependent biosensor signal is processed to obtain a plurality of feature vectors using at least one of amplitude statistics and a time-frequency analysis. At least one parameter relating to toxicity of the gas or liquid medium is then determined from the feature vectors based on reference to the control signal.
Abstract:
An acrobatic training apparatus for training individuals to perform acrobatic tricks is provided. The apparatus includes a main frame having a first base section having first and second parallel base struts connected by first and second cross member; a platform mounted on the first base section of the main frame; a plurality of elongated vertical members extending vertically upward from the first and second parallel base struts of the first base section; a first upper support member connected between a first pair of elongated vertical support members of the plurality of elongated vertical members; a second upper support member connected between a second pair of elongated vertical support members; a height adjustment mechanism adjustably mounted on the main frame configured to adapt to the height of the user; and a spotting apparatus mounted on the main frame and secured to the height adjustment mechanism.
Abstract:
A method for dispensing epoxy comprising the step of degassing an epoxy. The method further comprises the step of associating the epoxy with an epoxy injector comprising a dispensing end. The method further comprises the step of a computer receiving data representative of a selected container to receive the epoxy. The method further comprises the step of a computer determining a dispensing rate and a dispensing amount, based on the received data. The method further comprises the step of a computer causing the epoxy injector to dispense the determined dispensing amount of epoxy, via the dispensing end, at the determined dispensing rate. The method further comprises the step of a computer causing a dispensing arm, supporting the dispensing end, to retract the dispensing end while the epoxy injector is dispensing the epoxy. The method further comprises the step of curing the dispensed epoxy.
Abstract:
An acrobatic training apparatus for training individuals to perform acrobatic tricks is provided. The apparatus includes a main frame having a first base section having first and second parallel base struts connected by first and second cross member; a platform mounted on the first base section of the main frame; a plurality of elongated vertical members extending vertically upward from the first and second parallel base struts of the first base section; a first upper support member connected between a first pair of elongated vertical support members of the plurality of elongated vertical members; a second upper support member connected between a second pair of elongated vertical support members; a height adjustment mechanism adjustably mounted on the main frame configured to adapt to the height of the user; and a spotting apparatus mounted on the main frame and secured to the height adjustment mechanism.
Abstract:
A water quality analyzer for real-time detection according to the invention comprises a biased AC electro-osmosis (ACEO) cell for receiving a fluid to be analyzed having a plurality photosynthetic organisms therein, and concentrating the plurality photosynthetic organisms into at least one concentrated region. A photodetector is provided for obtaining a measured photosynthetic activity of the plurality of photosynthetic organisms in the concentrated region; wherein chemical, biological or radiological agents reduce a nominal photosynthetic activity of the photosynthetic organisms. An electronics package analyzes the measured photosynthetic activity to indicate a presence of the chemical, biological or radiological agents in the fluid.
Abstract:
A method of biosensor-based detection of toxins includes the steps of providing a fluid to be analyzed having a plurality of photosynthetic organisms therein, wherein chemical, biological or radiological agents alter a nominal photosynthetic activity of the photosynthetic organisms. At a first time a measured photosynthetic activity curve is obtained from the photosynthetic organisms. The measured curve is automatically compared to a reference photosynthetic activity curve to determine differences therebetween. The presence of the chemical, biological or radiological agents, or precursors thereof, are then identified if present in the fluid using the differences.