Disclosed is a heating element for a dental furnace including a tube element for accommodating a heating coil inside the tube element. At least one closing element may be connected to at least one open end of the tube element, wherein electrical connectors may be led through the closing element and fused with the element. The tube element may be made from a ceramic material, such as oxide ceramics, that may be connected to the connector via a plurality of intermediate glasses/transition glasses and glass solder to compensate for different heat expansion coefficients such that up to 500° C. gas escaping from the tube element may not enter due to a thermal action, providing that operational safety of the heating element is ensured. Further, disclosed is a dental furnace including such a heating element.

A temperature-regulated apparatus for food and drink preparation and storage, particularly for refrigeration and sous vide cooking. The apparatus is preferably a consumer electronic device comprising a compartment, base, reservoir, tube network, heating and cooling element, and an air pump system. The apparatus is controlled electronically and wirelessly in connection with a hardware and software system.

A color panel having a customized color, a home appliance including the same, and a method of manufacturing the color panel. The color panel according to an embodiment includes a transparent substrate, a color layer, a transparent layer formed between the color layer and the transparent substrate to adhere the color layer to the transparent substrate, and a white layer formed on the color layer to provide a background color.

A system for positioning an optical preform in a furnace is provided that includes an upper muffle and a downfeed handle assembly with a tube defining a first end and a second end, the second end extending into the upper muffle. A handle is disposed within the tube. A second end of the handle extends into the upper muffle and a seal assembly is positioned around both the tube and the handle. The first end of the handle extends through the seal assembly and a drive assembly is coupled with the downfeed handle.

A system for positioning an optical preform in a furnace is provided that includes an upper muffle and a downfeed handle assembly with a tube defining a first end and a second end, the second end extending into the upper muffle. A handle is disposed within the tube. A second end of the handle extends into the upper muffle and a seal assembly is positioned around both the tube and the handle. The first end of the handle extends through the seal assembly and a drive assembly is coupled with the downfeed handle.

Examples are disclosed herein that relate to a cooking system having multiple heating elements for heating a cooking surface. One example provides a cooking system, comprising a continuous cooking surface comprising a plurality of individually controllable heating zones, and for each heating zone, a temperature sensor configured to detect a temperature for the heating zone separately from the temperatures of other heating zones, and a heating element disposed beneath the heating zone and configured to provide heat to the heating zone. The cooking system further comprises a controller configured to individually control the heating element of each heating zone.

A temperature-regulated apparatus for food and drink preparation and storage, particularly for refrigeration and sous vide cooking. The apparatus is preferably a consumer electronic device comprising a compartment, base, reservoir, tube network, heating and cooling element, and an air pump system. The apparatus is controlled electronically and wirelessly in connection with a hardware and software system.

A gas phase type heating method includes loading an object into a vapor heating furnace or a heating furnace via a loading/unloading portion, cooling vapor of a heat transfer liquid by a cooler provided above the loading/unloading portion in the vapor heating furnace, and causing a gas to go in and out, making a pressure in a continuous furnace uniform, and heating the loaded object, by a connection portion that is provided above the cooler and has a pressure loss smaller than a pressure loss of the loading/unloading portion.

A crucible having a tubular inner surface is prepared. A source material is arranged so as to make contact with the inner surface, and a seed crystal is arranged in the crucible so as to face the source material. A silicon carbide single crystal grows on the seed crystal by sublimation of the source material. The inner surface is formed of a first region surrounding the source material and a second region other than the first region. In the growing a silicon carbide single crystal, an amount of heat per unit area in the first region is smaller than an amount of heat per unit area in the second region.

An embodiment includes an apparatus for controlling temperature of a substrate, an apparatus for treating a substrate comprising the same, and a method of controlling the same, which may control the temperature of the substrate by each area and not increasing the volume of the apparatus. The substrate temperature control apparatus comprises: a support plate for supporting a substrate; a plurality of heating units placed in different area of the substrate and controlling a temperature of the substrate by each area; a power supply unit for providing a power to control the temperature of the substrate; a switch unit connected between the plurality of heating units and the power supply unit, and obtaining one or more of a transistor device; and a controller for controlling a power which is supplied to each heating units by controlling unit.