A heater element with a functional material-containing layer includes: a honeycomb structure including an outer peripheral wall and partition walls disposed on an inner side of the outer peripheral wall, the partition walls defining a plurality of cells, each of the cells extending from a first end face to a second end face to form a flow path, at least the partition walls being made of a material having a PTC property; a pair of electrodes provided on the first end face and the second end face of the honeycomb structure; and a functional material-containing layer provided on a surface of the partition walls.

A portable space heater is provided having a heating assembly that includes at least one heating element positioned in front of a fan (defined by the direction of the air flow with the air blowing toward the front) such that the heating element is in linear alignment with the fan along the axis of rotation of the fan. The fan and the at least one heating element may be further positioned within a duct assembly that narrows as it approaches a front grill of the portable space heater.

An aerosol-generating device may include a housing having flexible portion along its length. The flexible portion is configured to transition between a relaxed or unloaded configuration and a flexed or deflected configuration. A flexible heating element and mouthpiece may also be disposed in the housing. When the housing is in a relaxed or unloaded configuration, the flexible heating element and the mouthpiece are at least partially longitudinally aligned with the flexible portion of the housing.

An electrical heater and a method of heating a catalyst. The heater includes a honeycomb body that includes a honey-comb structure. The honeycomb structure includes a central axis extending longitudinally and a plurality of interconnected walls. The interconnected walls include a plurality of radial walls extending along a radius of the honeycomb body between the central axis and an outermost periphery of the honeycomb body and a plurality of angular walls arranged concentrically with respect to the central axis and spanning between the radial walls. The honeycomb structure includes a plurality of cells defined by the interconnected walls. The heater comprises a first electrode disposed at the central axis and a second electrode disposed radially outwardly of the central axis and in electrical communication with the first electrode via one or more of the intersecting walls that are located between the first electrode and second electrode.

The present disclosure discloses a transmission electron microscope in-situ chip and a preparation method thereof. The transmission electron microscope in-situ chip includes a transmission electron microscope high-resolution in-situ gas phase heating chip, a transmission electron microscope high-resolution in-situ liquid phase heating chip and a transmission electron microscope in-situ electrothermal coupling chip. The transmission electron microscope high-resolution in-situ gas phase heating chip and the transmission electron microscope high-resolution in-situ liquid phase heating chip are respectively suitable for gas samples and liquid samples, and the transmission electron microscope in-situ electrothermal coupling chip realizes the multi-functional embodiment of electrothermal coupling. The three transmission electron microscope in-situ chips have the advantages of high resolution and low sample drift rate.

A cartridge for an aerosol-generating system is provided, including a liquid storage portion including a housing containing a liquid aerosol-forming substrate, the housing having an open end; and a heater assembly including: an electrical heating element configured to heat the substrate to form an aerosol, the heating element including a planar filament arrangement having one or more electrically conductive filaments, an electrically insulating substrate having a planar attachment face, the filament arrangement disposed on the planar attachment face, and clamping elements mechanically fixing the filament arrangement to the electrically insulating substrate and applying a pulling force onto the filament arrangement, at least a portion of the heater assembly being fluid-permeable, and the heater assembly being arranged over the open end of the housing.

An electrical heating unit H for introduction into the exhaust gas system of an internal combustion engine, in particular upstream with respect to an exhaust gas purification unit, for instance a catalytic converter, which for its operation requires a temperature higher than the ambient temperature, comprises a casing (13) and at least one resistance heating element (14) which is designed as a band and is retained inside the casing (13), wherein the at least one heating band (14) is arranged so that it runs in a meandering pattern and with its flat face parallel or substantially parallel to the longitudinal axis of the casing (13). The heating unit H also comprises at least one support structure (19, 19.1) which is arranged on the end face relative to the heating band (14) and mechanically connected to the casing (13) and has slot-shaped heating band bearings (27) to retain the heating band (14) inside the casing (13), into which slot-shaped heating band bearings (27) the heating band (14) engages by an edge portion and via which support structure (19) the heating band (14) is electrically insulated from the casing (13).

A cartridge for an aerosol-generating system includes a sensor including a capacitor with a first capacitor plate and a second capacitor plate, a storage portion for storing an aerosol-forming substrate, and a vaporizer. The storage portion is between the first capacitor plate and the second capacitor plate. The permittivity of the liquid storage portion changes upon a change of the volume f the liquid aerosol-forming substrate held in the liquid storage portion. The sensor is configured to measure the capacitance of the capacitor. The measured capacitance relates to a corresponding permittivity of the aerosol-forming substrate held in the storage portion so that the amount of the volume of the aerosol-forming substrate held in the storage portion is determinable from the measured capacitance.

An apparatus includes an exterior surface including an aperture, a sensor defining a field of view oriented through the aperture, a nozzle shell on the exterior surface and including a nozzle panel facing the aperture, and a heating element disposed in or on the nozzle panel. The nozzle panel includes a nozzle.

A ceramic core has a hollow interior with a first, inner diameter. A coil with a second diameter is embedded in the ceramic core. At least a portion of the second diameter is smaller than the first, inner diameter of the ceramic core to expose at least a portion of the coil to the hollow interior of the ceramic core. The coil may be inlaid and fixed on the inner wall of the hollow interior, one end of the coil is fixedly connected to the first pin, the first pin embedded inside the ceramic core. The other end of the coil is fixedly connected to the second pin, the second pin embedded inside the ceramic core. The inner diameter of the coil is d, the inner diameter of the hollow interior is D, d is smaller than D, the wire diameter of the coil is xd, and xd cuts D.