A heat dissipation device has a frame assembly, a gravity loop thermosyphon, and a dissipating fin assembly. The gravity loop thermosyphon has a heat exchanger, a condenser, two bendable tubes, and working fluid. One end of each bendable tube communicates with the heat exchanger and another end of each bendable tube communicates with the condenser and thus the working fluid may circulate therein. After the bendable tubes are bent, the condenser can be moved to an appropriate location or tilted to an appropriate angle according to the environment, and then the location and the angle are fixed via the frame assembly so the gravity loop thermosyphon can adapt for different dissipation assemblies.

The present disclosure is drawn to inertial pumps. An inertial pump can include a microfluidic channel, a fluid actuator located in the microfluidic channel, and a check valve located in the microfluidic channel. The check valve can include a moveable valve clement, a narrowed channel segment located upstream of the moveable valve element, and a blocking element formed in the microfluidic channel downstream of the moveable valve element. The narrowed channel segment can have a width less than a width of the moveable valve element so that the moveable valve element can block fluid flow through the check valve when the moveable valve element is positioned in the narrowed channel segment. The blocking element can be configured such that the blocking element constrains the moveable valve element within the check valve while also allowing fluid flow when the moveable valve element is positioned against the blocking element.

An electrochemical pump adopts a hybrid pulse to intermittently activate an electrochemical reaction. The abovementioned electrochemical pump can save power effectively to prolong the lifetime of the electrochemical pump. In addition, an electrochemical pump increases the bonding strength between electrodes and a substrate by covering edges of the electrodes with an insulating layer to avoid electrode delamination caused by high-power electrochemical reactions. A delivery device using the abovementioned electrochemical pump is also disclosed.

Hybrid thermodynamic compressor (8) for compressing a working fluid, the compressor comprising a volumetric cylinder (1) and a thermal cylinder (2) connected to one another mechanically by a connecting rod system (5) and pneumatically by a connecting circuit (12) optionally with a valve (4), a reversible electric machine (6), the volumetric cylinder comprising a first piston (81) that separates a first chamber (Ch1) from a second chamber (Ch2), the thermal cylinder comprising a second piston (82) which separates a third chamber (Ch3) from a fourth chamber (Ch4), which can be brought into thermal contact with a heat source (21) to thereby generate a cycled movement in the thermal cylinder, and concerning the connecting rod system (5), the first and second pistons are connected to a rotor (52) by first and second respective connecting rods (91,92), with a predetermined angular offset (θd), the volumetric cylinder being equipped with non-return valves (61,62), the power produced in the thermal cylinder being transmitted to the volumetric cylinder essentially via the connecting circuit and not via the rod system.

Hybrid thermodynamic compressor (8) for compressing a working fluid, the compressor comprising a volumetric cylinder (1) and a thermal cylinder (2) connected to one another mechanically by a connecting rod system (5) and pneumatically by a connecting circuit (12) optionally with a valve (4), a reversible electric machine (6), the volumetric cylinder comprising a first piston (81) that separates a first chamber (Ch1) from a second chamber (Ch2), the thermal cylinder comprising a second piston (82) which separates a third chamber (Ch3) from a fourth chamber (Ch4), which can be brought into thermal contact with a heat source (21) to thereby generate a cycled movement in the thermal cylinder, and concerning the connecting rod system (5), the first and second pistons are connected to a rotor (52) by first and second respective connecting rods (91,92), with a predetermined angular offset (θd), the volumetric cylinder being equipped with non-return valves (61,62), the power produced in the thermal cylinder being transmitted to the volumetric cylinder essentially via the connecting circuit and not via the rod system.

The present disclosure is drawn to microfluidic cellular membrane modification. In one example, a method of modifying cells can include pumping a fluid comprising cells in a forward direction through a microfluidic channel, applying an electric field within the microfluidic channel as cells flow in the forward direction through the electric field and beyond within the microfluidic channel, and pumping the fluid in a backward direction through the microfluidic channel, wherein cells flow in the backward direction returning through the electric field.

The present relates to a Metal hydride compressor control method for generating a variable output pressure P.sub._desired_outPut, comprising a first step of inflowing gaseous hydrogen into a metal hydride compartment at a constant temperature and then stopping the gaseous hydrogen inflow, a second step of heating the metal hydride to a predetermined temperature which corresponds to a temperature which passes through the α+β phase at the desired output pressure P.sub._desired_output, a third step of opening the output connection of the compressor and keeping it at a constant pressure by regulating the temperature to keep a constant output pressure P.sub._desired_outPut until the system completely leaves the α+β phase.

Systems and method of electrical power generation. The system and method controls the timescale of electron dynamics and makes use of avalanche ionization, electrodynamic flows, magnetic fields, polarization, radiation emissions, shock wave front, impulse pressure, and heat transfer, created by plasma generated by exposing a fluid to an ultrashort wavelength laser pulse from a femtosecond laser, a nanosecond laser combined with a femtosecond laser, or a typical laser enhanced by a discharge barrier, and the fluid guided by a shock reflecting tube, electro-laser wave guide, plasma discharge gap or check valves that create vortexes to resist backflow, through a capacitor. The fluid and plasma being accumulated and recombined in a storage chamber in a compressed state, or recycled for cyclical power generation.

An electrochemically actuated pump and an electrochemical actuator for use with a pump. The pump includes one of various stroke volume multiplier configuration with the pressure of a pumping fluid assisting actuation of a driving fluid bellows. The electrochemical actuator has at least one electrode fluidically coupled to the driving fluid chamber of the first pump housing and at least one electrode fluidically coupled to the driving fluid chamber of the second pump housing. Accordingly, the electrochemical actuator selectively pressurized hydrogen gas within a driving fluid chamber.

An electrochemically actuated pump and an electrochemical actuator for use with a pump. The pump includes one of various stroke volume multiplier configuration with the pressure of a pumping fluid assisting actuation of a driving fluid bellows. The electrochemical actuator has at least one electrode fluidically coupled to the driving fluid chamber of the first pump housing and at least one electrode fluidically coupled to the driving fluid chamber of the second pump housing. Accordingly, the electrochemical actuator selectively pressurized hydrogen gas within a driving fluid chamber.