Abstract: A method and system for ultrasonic fluid spectral Doppler imaging are disclosed. The system comprises: a transmission circuit for transmitting an ultrasonic beam to a detection object; a receiving circuit and a beam synthesis module for receiving an echo of the ultrasonic beam and obtaining an ultrasonic echo signal; an image processing module for obtaining an ultrasonic fluid flow state image of a region of interest in the detection object according to the ultrasonic echo signal, identifying a sampling position in the region of interest, respectively obtaining a Doppler spectrogram corresponding to each sampling position according to the ultrasonic echo signal, and generating position displaying marks for characterizing the sampling positions; and a display for displaying the position displaying marks in the ultrasonic fluid flow state image, and displaying the obtained Doppler spectrogram. The system may simultaneously display spectra of multiple locations on a same time axis.

Abstract: A method and a system for comprehensively evaluating reliability of a multi-chip parallel IGBT module are provided. The method includes: establishing a gate-emitter voltage reliability model of the multi-chip parallel IGBT module, performing a chip fatigue failure test, and selecting a gate-emitter voltage as a failure characteristic quantity; establishing a transconductance reliability model of the multi-chip parallel IGBT module, performing a bonding wire shedding failure test, and selecting a transmission characteristic curve of the module as a failure characteristic quantity; using a Pearson correlation coefficient to characterize a degree of health of the IGBT module, and respectively calculating degrees of health PPMCCC and PPMCCB in different degrees of chip fatigue and bonding wire shedding failure states; and comprehensively evaluating the reliability of the multi-chip parallel IGBT module according to PPMCCC and PPMCCB.

Abstract: A method and system for predicting an insulated gate bipolar transistor (IGBT) lifetime based on compound failure mode coupling are provided. First, a simultaneous failure probability model of a bonding wire and a solder layer is calculated. Next, expectancy of the simultaneous failure probability model is calculated and recorded as a lifetime under a coupling effect. A coupling function relation is established. A lifetime of the solder layer and a lifetime of the bonding wire are predicted. An IGBT lifetime prediction model not taking the coupling effect into account is established. An IGBT lifetime prediction model taking the coupling effect into account is established. In the disclosure, the lifetime of the IGBT module under the coupling effect of the solder layer and the bonding wire may be accurately predicted.

Abstract: An ultrasonic blood flow imaging display method and an ultrasonic imaging system. The system comprises: a probe (1); a transmitting circuit (2), configured to excite the probe (1) to transmit an ultrasonic beam to a scanning target; a receiving circuit (4) and a beam forming module (5), configured to receive an echo of the ultrasonic beam to obtain an ultrasonic echo signal; a data processing module (9), configured to obtain, according to the ultrasonic echo signal, blood flow velocity vector information and Doppler blood flow velocity information about a target point in the scanning target and at least part of ultrasonic images of the scanning target, and superposing the ultrasonic images and the Doppler blood flow velocity information to form a Doppler color blood flow graph; and a display (8), configured to contrastively display the blood flow velocity vector information and the Doppler color blood flow graph.

Abstract: A scheduling method performed by a computing device that includes a plurality of processors, a type of at least one instruction set of instruction sets supported by at least one of the plurality of processors is different from a type of an instruction set of instruction sets supported by another processor, where the scheduling method includes obtaining a type of an instruction set of an application, selecting a target processor from the plurality of processors, where the type of the instruction set of the application is a subset of types of a plurality of instruction sets of instruction sets supported by the target processor, and allocating the application to the target processor for execution.

Abstract: An outdoor customer premises equipment (CPE) is disclosed. The out door CPE may include: a main body which includes a printed circuit board (PCB), a heat sink, a heater assembly, a SIM card holder, a radio frequency (RF) cable and a fifth generation (5G) communication module; and an antenna module which is detachably connected to the main body and includes a cable interface connected to the RF cable, where the antenna module is a high-gain antenna module or a low-gain antenna module.

Abstract: A reliability evaluation method and system for a microgrid inverter IGBT based on segmented long short-term memory (LSTM) is disclosed, including steps as follows. An electrothermal coupling model is constructed to obtain real-time junction temperature data. The original LSTM algorithm is improved to obtain a segmented LSTM prediction network for the aging characteristics of the IGBT. The monitoring value of the IGBT aging parameter is used to perform segmented LSTM prediction to obtain the predicted aging process, and the threshold values of different aging stages are categorized. An aging correction is performed on the aging parameter of the electrothermal coupling model to ensure the accuracy of the junction temperature data. Rainflow-counting algorithm is used to calculate real-time thermal stress load distribution of the IGBT. The fatigue damage theory and the Lesit life prediction model are combined to calculate the real-time cumulative damage and predicted life of the IGBT.

Abstract: The application provides a driving circuit. The circuit includes: a segment display, including a plurality of light-emitting units; a controller, configured to generate a control instruction for the segment display according to a configuration signal; a digital driver, connected to the controller, and configured to generate a pulse driving signal according to the control instruction from the controller; and an amplification circuit, with one end being connected to the digital driver and the other end being connected to the plurality of light-emitting units of the segment display. The application also provides a magnetic sensing circuit and an electrical device. The magnetic sensing circuit includes a magnetic sensor, a sensing selection circuit, and a result representation circuit. A plurality of magnetic sensors are provided, and at least some of the plurality of magnetic sensors are capable of being connected to the sensing selection circuit by a sensing output terminal.

Abstract: A chemically strengthened glass sheet is provided that has a thickness of at least 3.3 mm and at most 6.0 mm and a composition, in mol% on an oxide basis, comprising the following components: SiO2 65 to 85 B2O3 3 to 13 ? (R2O + RO) 3 to 19, wherein R2O represents any of Li2O, Na2O, and K2O, and any combination thereof, and wherein RO represents any of MgO, CaO, SrO and BaO, and any combination thereof.

Abstract: The present invention relates to a chemically strengthened optical component comprising an optical glass, having a depth of layer (DoL) of 1.0 to 50.0 ?m, wherein the optical glass has a refractive index nd of at least 1.65, preferably at least 1.70, and wherein the optically glass comprises at least 5 mol % of a total of Li2O, Na2O and K2O or a combination of two or more thereof. The invention furthermore relates to a method for preparing the chemically strengthened optical component and the use thereof.

Abstract: The invention relates to a coated glass substrate or glass ceramic substrate with resistant, multi-functional surface properties, including a combination of anti-microbial, anti-reflective and anti-fingerprint properties, or a combination of anti-microbial, anti-reflective and anti-fingerprint properties where the substrate is chemically pre-stressed, or a combination of anti-microbial and anti-reflective properties where the substrate is chemically pre-stressed. The coated glass substrate or glass ceramic substrate exhibits a unique combination of functions which are permanently present and do not exert a negative effect on each other.

Abstract: The present disclosure relates to a band-pass near-infrared (NIR) filter and to a method of production of a band-pass NIR filter. The disclosure further relates to the use of such band-pass NIR filter, in particular in an infrared sensor, such as for object recognition, in particular facial recognition.

Abstract: A CuO-containing glass has a refractive index n of at least 1.7, a minimum absorption coefficient in a visible wavelength range from 380 nm to 780 nm is located between 450 nm and 550 nm, a difference of the absorption coefficient normalized to CuO weight percent at a wavelength of 700 nm and the minimum absorption coefficient normalized to CuO weight percent in the visible wavelength range from 380 nm to 780 nm is at least 10/cm. The glass includes the following components (in % by weight based on oxide): 0-70 wt-% La2O3, 0-70 wt-% Y2O3; 20-70 wt-% a sum of La2O3+Y2O3+RE2O3; 10-40 wt-% B2O3; 0-40 wt-% SiO2; 0-10 wt-% Nb2O5; 0-30 wt-% ZnO; 0-20 wt-% ZrO2; 0-20 wt-% Ta2O5and 0.1-10 wt-% CuO. RE2O3 includes Ce2O3, Pr2O3, Nd2O3, Sm2O3, Eu2O3, Gd2O3, Tb2O3, Dy2O3, Ho2O3, Er2O3, Tm2O3, Yb2O3, Lu2O3 and mixtures of two or more thereof.

Abstract: The invention relates to a coated glass substrate or glass ceramic substrate with resistant, multi-functional surface properties, including a combination of anti-microbial, anti-reflective and anti-fingerprint properties, or a combination of anti-microbial, anti-reflective and anti-fingerprint properties where the substrate is chemically pre-stressed, or a combination of anti-microbial and anti-reflective properties where the substrate is chemically pre-stressed. The coated glass substrate or glass ceramic substrate exhibits a unique combination of functions which are permanently present and do not exert a negative effect on each other.

Abstract: Disclosed are a method and an apparatus for obtaining the floating information of users floating between administrative regions. The method comprises: within a floating information statistical time range for mobile phone users, making statistics for mobile phone users entering an administrative region by using final effective location information corresponding to a location update request sent by a mobile phone entering the administrative region, corresponding international mobile subscriber identity IMSI_LUP information, and a Location Area Code LAC_CONF set of the administrative region; and within the floating information statistical time range for mobile phone users, making statistics for mobile phone users leaving the administrative region by using international mobile subscriber identity IMSI_LC information of a cancel location message sent by all Home Location Registers (HLR) in the administrative region.

Abstract: Disclosed are a method and an apparatus for obtaining the floating information of users floating between administrative regions. The method comprises: within a floating information statistical time range for mobile phone users, making statistics for mobile phone users entering an administrative region by using final effective location information corresponding to a location update request sent by a mobile phone entering the administrative region, corresponding international mobile subscriber identity IMSI_LUP information, and a Location Area Code LAC_CONF set of the administrative region; and within the floating information statistical time range for mobile phone users, making statistics for mobile phone users leaving the administrative region by using international mobile subscriber identity IMSI_LC information of a cancel location message sent by all Home Location Registers (HLR) in the administrative region.

Abstract: A method and device including modules for performing a statistics on a resident time span ratio of a dual-mode single-standby terminal user in dual networks, including: setting a Tstart, a Tend and a period t; with respect to a network of each mode in the dual networks respectively, acquiring a periodic location update times, periodic routing area update times, call time span except periodic location update and periodic routing area update, number of starting-up users, T3212 and T3312 of said user in each period t within a time slice from the Tstart to the Tend; according to the parameters, calculating resident time spans of each user in dual domains or CS single-domain network in an idle state, in PS single-domain network in the idle state, and in a connection state, and obtaining the respective resident time spans, thereby the resident time span ratio, of each user in the dual networks.

Abstract: A method and device including modules for performing a statistics on a resident time span ratio of a dual-mode single-standby terminal user in dual networks, including: setting a Tstart, a Tend and a period t; with respect to a network of each mode in the dual networks respectively, acquiring a periodic location update times, periodic routing area update times, call time span except periodic location update and periodic routing area update, number of starting-up users, T3212 and T3312 of said user in each period t within a time slice from the Tstart to the Tend; according to the parameters, calculating resident time spans of each user in dual domains or CS single-domain network in an idle state, in PS single-domain network in the idle state, and in a connection state, and obtaining the respective resident time spans, thereby the resident time span ratio, of each user in the dual networks.