Abstract: A method for performance determination of a heat pipe with an arbitrary liquid flow area and prescribed geometric dimensions, an external and internal structure, a heat pipe material and a working fluid, heating and cooling surface areas, and condenser cooling conditions is provided to obtain operating and performance parameters, wherein the operating and performance parameters are temperature distribution within the heat pipe, a heat transferred via a phase change and a conduction, an axial variation of a radius of curvature of a liquid-vapor interface along the heat pipe, a vapor temperature and pressure of the working fluid, by simulating a flow and an energy transfer inside.

Abstract: A method and a device to identify the material type of particles in a liquid are provided. The device is a microfluidic platform with a liquid channel for the material identification of a particle, the microfluidic platform includes electrodes forming a low-frequency sensor for measuring the geometric size of a particle passing through the liquid channel and electrodes forming a high-frequency sensor for measuring the capacitance change induced by the particle in the liquid channel. The technique combined both of these measurements to extract the dielectric permittivity of the particle.

Abstract: The present invention relates to a device wherein fluid or air-induced instability is converted into a flow sensing mechanism by building a CPW (Coplanar Wave Guide) resonator. Depending on the flow rate, periodic transitions between two bistable states emerge. Owing to the dependence of the transition period and the flow rate, the use of this effect for on-chip flow rate sensing is achieved with this invention. Moreover, the present invention ensures a flow rate sensor to be used in the ventilation machines for the treatment of the COVID-19 pandemic.

Abstract: A method for performance determination of a heat pipe with an arbitrary liquid flow area and prescribed geometric dimensions, an external and internal structure, a heat pipe material and a working fluid, heating and cooling surface areas, and condenser cooling conditions is provided to obtain operating and performance parameters, wherein the operating and performance parameters are temperature distribution within the heat pipe, a heat transferred via a phase change and a conduction, an axial variation of a radius of curvature of a liquid-vapor interface along the heat pipe, a vapor temperature and pressure of the working fluid, by simulating a flow and an energy transfer inside.

Abstract: A broadband choke inductor is used in a bias circuit for broadband high-power distributed amplifiers.

Abstract: The present invention relates to a device wherein fluid or air-induced instability is converted into a flow sensing mechanism by building a CPW (Coplanar Wave Guide) resonator. Depending on the flow rate, periodic transitions between two bistable states emerge. Owing to the dependence of the transition period and the flow rate, the use of this effect for on-chip flow rate sensing is achieved with this invention. Moreover, the present invention ensures a flow rate sensor to be used in the ventilation machines for the treatment of the COVID-19 pandemic.

Abstract: The present invention relates to a device for determining the mass of a nanoparticle, virus or protein in a suspension or solution in a fluid. This device can be applied in particular to mass spectrometry for ionized species with high collection efficiency (i.e. low limit of detection). According to the present invention, an instrument comprises a first device for electrospraying the fluid to obtain a charged flux comprising at least the particle, a second device for determining the mass of the particle by a frequency measurement and a third device that is fabricated on the same chip with, and surrounding the second device to focus and guide the majority of the incoming charged particles including at least the particle by means of holding charge on itself to act as an electrostatic lens.

Abstract: In one aspect, in a magnetic resonance imaging system having a gradient coil array comprising a plurality of independent coils distributed about an enclosure, a method of applying currents to said coils is disclosed, which comprises defining a merit function for optimizing at least one feature of any of a magnetic field and an electric field generated by the coils, using a computer processor to optimize the merit function so as to determine an optimal current vector, wherein said element of the current vector provides a current value for application to one of said gradient coils, and applying the currents to said coils.

Abstract: A method of calibrating a magnetic particle imaging system including a magnetic field generator and a measurement device by proposing a coded calibration scene, wherein the coded calibration scene contains multiple nanoparticle samples distributed inside a volume of the coded calibration scene, larger than a field of view, wherein the coded calibration scene is moved linearly in one or more directions and/or rotated at one or more axes on the magnetic imaging system, and further, a mechanical system for moving the coded calibration scene.