Abstract: Provided are an interaction method and apparatus in a live streaming room, a device, and a storage medium. The method comprises: in response to a trigger operation for a preset drawing entry on a live streaming room page, jumping to a graphic drawing page from the live streaming room page, a drawing trajectory set for a preset object being displayed on the graphical drawing page; when a drawing stroke on the graphic drawing page is received, matching the drawing stroke with the drawing trajectory; and if it is determined that the drawing stroke is successfully matched with the drawing trajectory, displaying prompt information about successful participation in a preset activity, the preset activity and the preset drawing entry having a correspondence.

Abstract: Disclosed herein are microelectronics package architectures utilizing in-situ high surface area capacitor in substrate packages and methods of manufacturing the same. The substrates may include an anode material, a cathode material, and a conductive material. The anode material may have an anode surface that may define a plurality of anode peaks and anode valleys. The cathode material may have a cathode surface that may define a plurality of cathode peaks and cathode valleys complementary to the plurality of anode peaks and anode valleys. The conductive material may be located at the anode peaks.

Abstract: The present disclosure provides an energy-efficient (low energy consumption), carbon enriched cement production system and a method for producing cement clinker. This system involves raw material preheating and precalcining system and sequentially connected kiln inlet chamber, rotary kiln and cooler, wherein the raw material preheating and precalcining system involves precalciner and preheater, and the cooler involves first cooling zone and second cooling zone. The first cooling zone includes first cooling partition and second cooling partition, wherein a mixture of pure oxygen and high-concentration CO2 flue gas entering the inlet of the first cooling partition, high-concentration CO2 flue gas entering the inlet of the second cooling partition, and air entering the inlet of the second cooling zone have solved the problems in existing cement kiln CO2 enrichment technology, i.e., extensive air leakage and high energy consumption between the first cooling zone and the second cooling zone.

Abstract: A fastener tape, a slide fastener, a skin product, and a method of forming the fastener tape are provided. The method includes forming fabric tapes made from high-melting warp yarns and weft yarns. The fabric tapes each include an outer connecting portion and an inner connecting portion. Fastener teeth are sewn to an outer side of the inner connecting portion through a sewing thread. The inner connecting portion includes an teeth sewing region. A low-melting component is provided in at least the teeth sewing region, and the low-melting component thermally welds the high-melting sewing thread, warp yarns, and weft yarns to form a hardened structure. The method further includes heating, after the fastener teeth are sewn to the fabric tapes, the fabric tapes for bending and shaping, such that the low-melting component thermally welds the sewing thread, the warp yarns, and the weft yarns.

Abstract: A dudou-shaped test block includes a testing structure, a first beam-path structure, and a second beam-path structure. A first arc-shaped groove and a second arc-shaped groove are provided on one side of the testing structure. The other side of the testing structure is a flat surface. The first beam-path structure and the second beam-path structure are both flat plates. A thickness of the first beam-path structure is less than a thickness of the second beam-path structure. The first beam-path structure and the second beam-path structure are both in contact with the flat surface and arranged parallel to the flat surface. The first arc-shaped groove is arranged corresponding to the first beam-path structure, and the second arc-shaped groove is arranged corresponding to the second beam-path structure.

Abstract: A portable wire cutting device for sampling a steel ingot includes a wire rack device, a driving system, and a multi-axis moving device. The wire rack device includes a first corner wheel, a second corner wheel, a transition wheel, a steering wheel, a first wire rack, a second wire rack, and a wire winding drum. The driving system includes a wire drum motor and a molybdenum wire, wherein the wire drum motor provides power driving for the operation of a cutting line; and the molybdenum wire is a closed molybdenum wire coil connected in an end-to-end manner, the molybdenum wire is wrapped around the first corner wheel, the second corner wheel, the wire winding drum, and an inner side of the transition wheel in a looping manner, and during operation, the cutting line performs wire cutting on an object by the molybdenum wire.

Abstract: A portable wire cutting device for sampling a steel ingot includes a wire rack device, a driving system, and a multi-axis moving device. The wire rack device includes a first corner wheel, a second corner wheel, a transition wheel, a steering wheel, a first wire rack, a second wire rack, and a wire winding drum. The driving system includes a wire drum motor and a molybdenum wire, wherein the wire drum motor provides power driving for the operation of a cutting line; and the molybdenum wire is a closed molybdenum wire coil connected in an end-to-end manner, the molybdenum wire is wrapped around the first corner wheel, the second corner wheel, the wire winding drum, and an inner side of the transition wheel in a looping manner, and during operation, the cutting line performs wire cutting on an object by the molybdenum wire.

Abstract: A dudou-shaped test block includes a testing structure, a first beam-path structure, and a second beam-path structure. A first arc-shaped groove and a second arc-shaped groove are provided on one side of the testing structure. The other side of the testing structure is a flat surface. The first beam-path structure and the second beam-path structure are both flat plates. A thickness of the first beam-path structure is less than a thickness of the second beam-path structure. The first beam-path structure and the second beam-path structure are both in contact with the flat surface and arranged parallel to the flat surface. The first arc-shaped groove is arranged corresponding to the first beam-path structure, and the second arc-shaped groove is arranged corresponding to the second beam-path structure.

Abstract: Various embodiments of an integrated polarization rotator-splitter/combiner apparatus are described. An integrated polarization rotator-splitter apparatus may include an input waveguide section, a polarization rotator section, a polarization splitter section and an outgoing waveguide section, which can also be reversely connected as a polarization rotator-combiner.

Abstract: An optical coupler structure may include a substrate, a waveguide section and an anchored cantilever section. The substrate may include a main body and a sub-pillar structure formed on the main body. The waveguide section may be disposed on the substrate, and may include a core waveguide of a first material surrounded by a cladding layer of a second material. The anchored cantilever section may be disposed on the sub-pillar structure on the substrate, which may be configured to support the cantilever section and separate the cantilever section from the main body of the substrate. The anchored cantilever section may include a multi-stage inverse taper core waveguide and a cladding layer, of the second material, which surrounds the multi-stage inverse taper core waveguide.

Abstract: A heel test block comprises a semi-cylinder, a first flat plate and a second flat plate, wherein the side surface of the semi-cylinder comprises a circular arc-shaped surface and a first plane, the first flat plate and the second flat plate are arranged on one side of the first plane, all the parts of the first flat plate have the same thickness, all the parts of the second flat plate have the same thickness, the first flat plate and the second flat plate are arranged in parallel to the first plane, the first flat plate and the second flat plate are arranged on the two sides of the mother line of the semi-cylinder respectively, and the thickness of the first flat plate is less than that of the second flat plate.

Abstract: Various structures of an electro-optic device and fabrication methods thereof are described. A fabrication method is provided to fabricate an electro-optic device which may include a silicon-based rib-waveguide modulator which includes a first top silicon layer, having a first doped region that is at least partially doped with dopants of a first conducting type, a second top silicon layer, having a second doped region that is at least partially doped with dopants of a second conducting type, and a thin dielectric gate layer disposed between the first top silicon layer and the second top silicon layer. The second doped region may be at least in part directly over the first doped region. The modulator may also include a rib waveguide formed on the second top silicon layer, a first electric contact formed on the first top silicon layer, and a second electric contact formed on the second top silicon layer.

Abstract: A heel test block comprises a semi-cylinder, a first flat plate and a second flat plate, wherein the side surface of the semi-cylinder comprises a circular arc-shaped surface and a first plane, the first flat plate and the second flat plate are arranged on one side of the first plane, all the parts of the first flat plate have the same thickness, all the parts of the second flat plate have the same thickness, the first flat plate and the second flat plate are arranged in parallel to the first plane, the first flat plate and the second flat plate are arranged on the two sides of the mother line of the semi-cylinder respectively, and the thickness of the first flat plate is less than that of the second flat plate.

Abstract: A device, such as a silicon modulator, in accordance with the present disclosure employs PN diodes without sacrificing the modulation depth, while achieving lower loss and better impedance matching to 50-Ohm drivers. In one embodiment, the device includes an input waveguide, an input optical splitter coupled to the input waveguide, first and second optical phase shifters coupled to the input optical splitter, an output optical splitter coupled to the first and second phase shifters, and an output waveguide coupled to the output optical splitter. The phase shifters are designed with variant capacitance per unit length.

Abstract: An optical coupler structure may include a substrate, a waveguide section and an anchored cantilever section. The substrate may include a main body and a sub-pillar structure formed on the main body. The waveguide section may be disposed on the substrate, and may include a core waveguide of a first material surrounded by a cladding layer of a second material. The anchored cantilever section may be disposed on the sub-pillar structure on the substrate, which may be configured to support the cantilever section and separate the cantilever section from the main body of the substrate. The anchored cantilever section may include a multi-stage inverse taper core waveguide and a cladding layer, of the second material, which surrounds the multi-stage inverse taper core waveguide.

Abstract: Various structures of an electro-optic device and fabrication methods thereof are described. A fabrication method is provided to fabricate an electro-optic device which may include a silicon-based rib-waveguide modulator which includes a first top silicon layer, having a first doped region that is at least partially doped with dopants of a first conducting type, a second top silicon layer, having a second doped region that is at least partially doped with dopants of a second conducting type, and a thin dielectric gate layer disposed between the first top silicon layer and the second top silicon layer. The second doped region may be at least in part directly over the first doped region. The modulator may also include a rib waveguide formed on the second top silicon layer, a first electric contact formed on the first top silicon layer, and a second electric contact formed on the second top silicon layer.

Abstract: Embodiments of the present disclosure provide a high-speed silicon modulator without the microwave mode conversion and provide 50-ohm impedance matching to drivers simultaneously. In one aspect, a device may include an input waveguide region, an optic splitter, two optic phase shifters, an optic splitter, and an output waveguide. The device may include two curved waveguides. Either or both of the curved waveguides may have specially doped regions including PN junctions or MOS capacitors. The PN junctions or MOS capacitors may be alternatively connected to both slots of a coplanar waveguide forming the electrodes.

Abstract: Various embodiments of an integrated polarization rotator-splitter/combiner apparatus are described. An integrated polarization rotator-splitter apparatus may include an input waveguide section, a polarization rotator section, a polarization splitter section and an outgoing waveguide section, which can also be reversely connected as a polarization rotator-combiner.

Abstract: Embodiments of the present disclosure provide a high-speed silicon modulator without the microwave mode conversion and provide 50-ohm impedance matching to drivers simultaneously. In one aspect, a device may include an input waveguide region, an optic splitter, two optic phase shifters, an optic splitter, and an output waveguide. The device may include two curved waveguides. Either or both of the curved waveguides may have specially doped regions including PN junctions or MOS capacitors. The PN junctions or MOS capacitors may be alternatively connected to both slots of a coplanar waveguide forming the electrodes.

Abstract: A device, such as a silicon modulator, in accordance with the present disclosure employs PN diodes without sacrificing the modulation depth, while achieving lower loss and better impedance matching to 50-Ohm drivers. In one embodiment, the device includes an input waveguide, an input optical splitter coupled to the input waveguide, first and second optical phase shifters coupled to the input optical splitter, an output optical splitter coupled to the first and second phase shifters, and an output waveguide coupled to the output optical splitter. The phase shifters are designed with variant capacitance per unit length.