Abstract: A flow-path-regulating, dip-tube device is an adaptable, scalable, flow-through performance enhancement to any vessel-type, reaction containment apparatus. This apparatus is embodied as a reconfigurable, quasi-“dip tube” which modularly improves reaction processing, performance, and efficiency. This apparatus increases operational flexibility, adaptable design, and vastly improves efficiencies and flow predictability of vessel-type reaction containers by retrofitting them with benefits of tubular reaction-containment configurations. Internally, the dip-tube device defines one or more closely spaced, functional voids which operate as fluid channels that can be configured in various geometric or topologic arrangements. The dip-tube apparatus is widely scalable, provides high thermodynamic efficiency, manufacturing simplicity, and affordability for varied operations through additive manufacturing, and has a compact physical footprint conformally fitted within a parent container.

Abstract: A flow cell can comprise a high-pressure, fluidic, flow-through housing that encloses and auto-aligns a heavy-walled, internally reflective low-cost glass capillary for concentrating and amplifying laser-excited spectra. The containment housing that encloses the capillaries can optionally sustain operational pressures of at least 10,000 psi. The pressure housing can be fitted with transparent optical windows that can accommodate laser-safe injection and spectra collection. The flow-cell design can adaptably accommodate different optical sampling configurations such as transmissive (forward scattering), reflective (backward scattering), or multipass, combined scattering. The flow cell size is scalable (lengthwise) to accommodate different applications or installations such as benchtop (lab), permanent (industrial), and portable (field).

Abstract: The disclosure describes devices for monitoring physiological activity (e.g., a pulse). These devices can include: a detector configured to detect sound; an ultrasound system to detect fluid flow; an adhesive to attach a detector to skin of a patient; an adhesive to attach a probe to skin of a patient; and a speaker to amplify or communicate detected sound or flow.

Abstract: The disclosure describes devices for monitoring physiological activity (e.g., a pulse). These devices can include: a resonator configured to detect sound; an ultrasound system to detect fluid flow; an adhesive to attach a resonator to skin of a patient; an adhesive to attach a probe to skin of a patient; and a speaker to amplify or communicate detected sound or flow.

Abstract: A flow cell can comprise a high-pressure, fluidic, flow-through housing that encloses and auto-aligns a heavy-walled, internally reflective low-cost glass capillary for concentrating and amplifying laser-excited spectra. The containment housing that encloses the capillaries can optionally sustain operational pressures of at least 10,000 psi. The pressure housing can be fitted with transparent optical windows that can accommodate laser-safe injection and spectra collection. The flow-cell design can adaptably accommodate different optical sampling configurations such as transmissive (forward scattering), reflective (backward scattering), or multipass, combined scattering. The flow cell size is scalable (lengthwise) to accommodate different applications or installations such as benchtop (lab), permanent (industrial), and portable (field).