Abstract: The present disclosure provides a display device. The display device includes a rotating light bar and a driving unit. The driving unit is connected to a center point of the rotating light bar, and the rotating light bar is configured to rotate with the center point of the rotating light bar as an axis. The rotating light bar includes light emitting device groups arranged along a width direction of the rotating light bar, each of the light emitting device groups includes light emitting devices arranged along a length direction of the rotating light bar, and the light emitting devices in two adjacent ones of the light emitting device groups are staggered in the length direction of the rotating light bar.

Abstract: The present disclosure relates to an interface material for virtual reality interaction and a preparation method therefor. The interface material is composed of an ionic conductive self-adhesive hydrogel and an organic solvent. The preparation method includes: (1) preparing a prepolymer solution; (2) preparing a bioelectrical sensing pregel by ultraviolet (UV) curing; and (3) preparing an interface material for virtual reality interaction by solvent extraction. The preparation method of the present disclosure is simple and cost-effective, and can be used for large-scale production. The obtained gel interface material has excellent properties such as high stability, high sensitivity, non-invasiveness, and reusability, can be used for detection of bioelectrical signals such as electromyography (EMG) signals and electroencephalography (EEG) signals, and has important application value in the field of virtual reality interaction.

Abstract: Methods and devices for detecting incident radiation, such as incident X-rays, gamma-rays, and/or alpha particle radiation are provided. The methods and devices use high purity, high quality single-crystals of inorganic semiconductor compounds, including solid solutions, having the formula AB2X5, where A represents Tl or In, B represents Sn or Pb, and X represents Br or I, as photoelectric materials.

Abstract: Provided is a method for automatically calibrating wireless frequency offsets. The method includes following steps: a wireless fidelity (Wi-Fi) wireless transmission module monitors or scans a specific data packet of an access point (AP); the Wi-Fi wireless transmission module acquires a frequency offset between a central frequency of the Wi-Fi wireless transmission module and a central frequency of the AP according to the specific data packet; the Wi-Fi wireless transmission module executes frequency offset tracking according to the frequency offset to control the Wi-Fi wireless transmission module to calculate a central frequency according to a frequency offset acquired for a surrounding AP of the Wi-Fi wireless transmission module in such a way that each of the calculated central frequency and the frequency offset for the surrounding AP is in a preset standard, and adjusts the central frequency of the Wi-Fi wireless transmission module according to the calculated central frequency.

Abstract: Provided is a method for automatically calibrating wireless frequency offsets. The method includes following steps: a wireless fidelity (Wi-Fi) wireless transmission module monitors or scans a specific data packet of an access point (AP); the Wi-Fi wireless transmission module acquires a frequency offset between a central frequency of the Wi-Fi wireless transmission module and a central frequency of the AP according to the specific data packet; the Wi-Fi wireless transmission module executes frequency offset tracking according to the frequency offset to control the Wi-Fi wireless transmission module to calculate a central frequency according to a frequency offset acquired for a surrounding AP of the Wi-Fi wireless transmission module in such a way that each of the calculated central frequency and the frequency offset for the surrounding AP is in a preset standard, and adjusts the central frequency of the Wi-Fi wireless transmission module according to the calculated central frequency.

Abstract: Methods and devices for detecting incident radiation, such as incident x-rays or gamma-rays, are provided. The methods and devices use high purity, high quality single-crystals of inorganic semiconductor compounds having the formula A2P2X6, where A represents Pb or Sn and X represents S or Se, as photoelectric materials.

Abstract: Methods and devices for detecting incident radiation, such as incident X-rays, gamma-rays, and/or alpha particle radiation are provided. The methods and devices use high purity, high quality single-crystals of inorganic semiconductor compounds, including solid solutions, having the formula AB2X5, where A represents Tl or In, B represents Sn or Pb, and X represents Br or I, as photoelectric materials.

Abstract: Barium titanate thin film waveguides and related modulator and devices with photonic crystal structures to promote wide bandwidths, low operating voltages and small footprint.

Abstract: Methods and devices for detecting incident radiation, such as incident x-rays or gamma-rays, are provided. The methods and devices use high purity, high quality single-crystals of inorganic semiconductor compounds having the formula A2P2X6, where A represents Pb or Sn and X represents S or Se, as photoelectric materials.

Abstract: Barium titanate thin film waveguides and related modulator and devices with photonic crystal structures to promote wide bandwidths, low operating voltages and small footprint.

Abstract: A low temperature co-fired ceramic powder has a chemical composition of xR2O-yR?O-zM2O3-wM?O2, wherein R is Li, Na and/or K, R? is Mg, Ca, Sr, Ba, Zn and/or Cu, M is B, Al, Ga, In, Bi, Nd, Sm, and/or La, M? is Si, Ge, Sn, Ti, and/or Zr, x?0, y?0, z?20%, w?15%, and x+y+z+w=1. The preparation method comprises: weighing constituent powders according to the composition of the ceramic powder, and uniformly mixing these powders as a raw material powder; and presintering the raw material powder in a muffle furnace followed by grinding, the presintering comprising gradiently heating the raw material powder to a maximum temperature of 950° C. by first rising to 350-450° C. and staying thereat for a period, then staying at intervals of 50-100° C. for a period.

Abstract: A low temperature co-fired ceramic powder has a chemical composition of xR2O-yR?O-zM2O3-wM?O2, wherein R is Li, Na and/or K, R? is Mg, Ca, Sr, Ba, Zn and/or Cu, M is B, Al, Ga, In, Bi, Nd, Sm, and/or La, M? is Si, Ge, Sn, Ti, and/or Zr, x?0, y?0, z?20%, w?15%, and x+y+z+w=1. The preparation method comprises: weighing constituent powders according to the composition of the ceramic powder, and uniformly mixing these powders as a raw material powder; and presintering the raw material powder in a muffle furnace followed by grinding, the presintering comprising gradiently heating the raw material powder to a maximum temperature of 950° C. by first rising to 350-450° C. and staying thereat for a period, then staying at intervals of 50-100° C. for a period.

Abstract: A discharge tube arrangement for a compact fluorescent lamp is provided. The tube forms a continuous arc path and has electrodes disposed at each end of the arc path. The discharge tube arrangement comprises a first cold chamber in order to control and maintain a required mercury vapor pressure. The first cold chamber is located in a longitudinal end portion of the tube arrangement. The discharge tube arrangement is further provided with at least one second cold chamber, which is positioned between the longitudinal end portions of the discharge tube arrangement. The at least one second cold chamber is positioned on the wall of the tube, and has a cold chamber wall protruding substantially away from the central axis of the discharge tube arrangement. The discharge tube arrangement may have a coiled configuration with helical tube portions or a multifinger configuration with straight tube members.

Abstract: A discharge tube arrangement for a compact fluorescent lamp is provided. This discharge tube arrangement has a central axis and longitudinal end portions, and is formed of at least one discharge tube made of glass, encloses a discharge volume which is filled with a discharge gas and has a fluorescent phosphor coating disposed on an inner surface portion of the tube. The tube forms a continuous arc path and has electrodes disposed at each end of the arc path. The discharge tube arrangement comprises a first cold chamber in order to control and maintain a required mercury vapor pressure. The first cold chamber is located in a longitudinal end portion of the tube arrangement. The discharge tube arrangement is further provided with at least one second cold chamber, which is positioned between the longitudinal end portions of the discharge tube arrangement.