The
valveless exhaled air sampler, similar to the description by Stewart [28], consisted of a glass tube (outer diameter 2 cm, length 20.5 cm) with threads (thread size 13-425) on both ends and two open-top septum screw caps.
Moreover, in 2011,
valveless micropump with two chambers has been developed to actuate fluid at a higher flow rate in one direction by adding a secondary chamber.
The patented,
valveless live injection system has no moving parts and is therefore completely maintenance-free.
The VMP variable displacement dispenser is a programmable dispensing system, which uses the company's patented Ceram-Pump
valveless piston pump design.
Here are a range of wacky offbeat science experiments and projects many an adult is sure to appreciate, also: from magnetic
valveless valves to a Victorian amplifier.
Solid-state electronics, stepping-motor drives, and
valveless ceramic pumps reportedly provide accuracy, reliability, and long life.
Adult hearts in vertebrates, such as zebrafish and people, pump blood using valves and muscle contractions to create suction, but the early heart in these animals is a
valveless tube.
Micropump's diverse range of pumping technologies includes micro-cavity and external gear pumps, multiple and
valveless piston pumps, peristaltic, micro-annular, vane and centrifugal pumps.
Among the many differences between the present recording and its predecessors is the restoration of two long,
valveless trumpets on stage, each playing a single note standing out above the entire orchestra." The Firebird was recorded in 1996 and first released on the MusicMasters label, and Petruchka was recorded a year later, 1997, both in multichannel.
The technology integrates multiplexed fluid dispensing through a novel
valveless delivery system, fluid processing, and automated soft materials product collection.
The IDS-2000ARH is CE approved and integrates FMI's patented CeramPump[R]
valveless piston pumping principal with precision stepper control.
and the Texas Heart Institute (THI) in Houston, is a
valveless, electrically powered pump designed for long-term circulatory support that is placed directly into the left ventricle.
Since the veins are
valveless, the Batson plexus is thought to allow migration of tumor cells into the vertebral plexus when the intra-abdominal pressure is increased, even in physiologic situations such as moving from the supine to the sitting and standing positions.[7] The vertebral venous complex forms innumerable anastomoses with the sinusoidal structure of the vertebral bone marrow and the epidural venous channels.
Engineered with a
valveless down hole hammer design, this new RC hammer is perfectly suited for drilling applications in the exploration, water well, construction, mining and environmental industries.