Abstract:
Devices, systems and methods for needle free injection include a multi-use needle-free injection device comprising reversibly connected proximate and distal sections, wherein the proximate section comprises a power supply, actuator, circuitry and a housing, and the distal section comprises a disposable nozzle tip prefilled with an injectate, a chemical energetic device, and a dual seal piston barrier between the energetic device and the injectate, wherein the proximate and distal sections and their components are operably linked and configured for single-hand injecting of the injectate.
Abstract:
A wind-powered unmanned underwater vehicle (UUV) system can include a kite subsystem configured to be powered by wind energy, a control pod coupled with the kite subsystem and configured to control the kite sub-system, a payload platform configured to provide a mechanical structure on which at least one module may be mounted, a submersible UUV, and a coupling device configured to physically couple between the kite sub-system and the submersible UUV.
Abstract:
Detecting and identifying ions using surface enhanced Raman spectroscopy (SERS) and an ion separation pre-filter, such as an ion spectrometer, are provided. The combination of an ion separator as a pre-filter for SERS provides a highly sensitive detector with very low false alarm rates. Target ions from an ionized sample are identified and separated by the ion separator. The target ions are steered and deposited onto a SERS substrate for Raman spectroscopic analysis with an optical probe. The Raman spectrum is compared with reference spectra and the composition of the sample is identified. The ion current from the target ions can also be measured, preferably concurrently with the Raman spectrum measurement. Types of ion separators include a differential ion mobility spectrometer, an ion mobility spectrometer, or a mass spectrometer.