Abstract: A graphene oxide (GO)-silver nanoparticles (AgNPs)-Eu3+ fluorescent probe, a paper-based sensor, and a preparation method and use thereof are provided. The paper-based sensor is developed based on a GO-AgNPs-Eu3+ fluorescent probe-loaded polyvinylidene fluoride (PVDF) microporous membrane, which is further combined with a smartphone. The GO-AgNPs-Eu3+ fluorescent probe shows high selectivity for 2,6-dipicolinic acid (DPA), strong anti-interference ability, and low limit of detection (LOD) for the DPA and spores. The paper-based sensor realizes quantitative detection of the DPA and the spores through red, green, and blue (RGB) changes of the smartphone, and detection results are verified by an actual amount of the spores in milk and water. The rapid detection of foodborne spores is achieved through a dual-function platform based on fluorescence of the GO-AgNPs-Eu3+ fluorescent probe and the paper-based sensor.

Abstract: A method utilizing optical path difference in two-phase flow for analytical calculation of particle size gradation and solid content comprises: changing a width of measurement area of a laser particle size analyzer, and collecting extinction values at two different optical path lengths and a scattered light intensity signal on each detector during monitoring; utilizing the scattered light intensity signal with a long optical path to subtract the scattered light intensity signal with a short optical path on each detector to obtain a set of new scattered light intensity signals with background subtracted; processing particle size distribution inversion calculations for the set of scattered light intensity signals with background subtracted to obtain gradation data of solid particles; processing subtraction of the logarithm of the extinction value of the short optical path from the logarithm of the extinction value of the long optical path to obtain new extinction value; calculating the solid content based on th

Abstract: A method includes placing a wafer in a process bath filled with a process solution; determining whether the wafer is in the process bath after a pre-set process time after placing the wafer in the process bath; and in response the determination determines that the wafer is in the process bath after the pre-set process time, draining the process solution from the process bath while the wafer is in the process bath.

Abstract: The present invention relates to a double-hook dough kneading structure, it includes an output shaft, a rotating rod with a center perpendicularly fixed to a bottom of the output shaft, a first rotating shaft rotationally connected to one end of the rotating rod, a second rotating shaft rotationally connected to the other end of the rotating rod, a first dough kneading hook detachably connected to a bottom of the first rotating shaft, a second dough kneading hook detachably connected to a bottom of the second rotating shaft, an internally-toothed ring fixed to an outer side of the output shaft, a first planetary gear fixed to a top of the first rotating shaft, and a second planetary gear fixed to a top of the second rotating shaft, where the first planetary gear and the second planetary gear are respectively engaged with an inner side of the internally-toothed ring.

Abstract: A roof system is provided. The roof system includes a roof body capable of forming a flat roof or a corrugated roof, where the roof body is provided on a roof pillar; a gutter system is provided at a valley position of the corrugated roof or on the flat roof; a skylight system is further provided at a pitched roof or a ridge of the corrugated roof or on the flat roof; and a pressure relief adjustment component is provided on the skylight system. According to the roof system, a plurality of roof modules are assembled into the roof body. Two adjacent ones of the roof modules are fixed by a connecting plate and a self-locking component when assembled. A plurality of reinforcing points work cooperatively, so the roof system achieves a high utilization rate, and ensures the overall stability and bearing capacity of the roof.

Abstract: A conference and collaboration system including local computing devices and a receiver are provided. The receiver and/or local devices may run collaboration applications and/or virtual conferencing applications. The receiver and/or at least one local device may be in communication with a remote server running a conference platform and hosting a virtual conference. The receiver may join the conference as a participant and share audio/visual data with the conference platform. The local device may also join and may share audio/visual data with the conference platform and receive conference audio/visual data from the conference platform. The local device may share the conference audio/visual data with the receiver. The receiver may further receive audio/visual data from a non-participant local device and send such data to the conference platform. Alternatively, only a conference device may join the conference as a participant and share audio/visual data from the conference with the local devices.

Abstract: The present invention relates to the technical field of electrical appliances for kitchen. The multifunctional driving mechanism uses a first output shaft and a second output shaft. A stirring assembly is detachably connected to a bottom of the first output shaft for mixing dough, whipping butter and eggs, and the like. The other end of the second output shaft is provided with a splicing slot in abutting joint to an accessory driving shaft, and an accessory joint can be added to make noodles, mince meat, stuff sausages, slice, shred, dice, grind, juice, and the like, with various functions and convenience in use; moreover, the first output shaft is perpendicular to the second output shaft, and the first output shaft and the second output shaft neither conflict with each other nor occupy a very large space during simultaneous working, so that the structure is compact.

Abstract: A system includes at least one sensor and at least one controller. The at least one sensor is configured to generate a first weight signal corresponding to a first weight of a first lot of substrates, and a second weight signal corresponding to a second weight of a second lot of substrates. The at least one controller is coupled to the at least one sensor to receive the first weight signal and the second weight signal. The at least one controller is configured to, based on a weight difference between the first weight and the second weight, control a processing apparatus to rotate the first lot of substrates and the second lot of substrates simultaneously.

Abstract: A current peak value measurement apparatus (100), a high voltage generator (200), and a therapeutic device for vascular calcification. The current peak value measurement apparatus (100) includes a PCB Rogowski coil (10), a sampling resistor (11), a signal amplification circuit (12), an integration and voltage retaining circuit (13) and a micro-controller (14), wherein the PCB Rogowski coil (10) is used for sensing a current signal in a circuit to be detected, and for obtaining a corresponding induced electromotive force; the micro-controller (14) is used for performing ADC sampling on the maximum value of a voltage signal, and for obtaining a current peak value of the current signal in the circuit to be according to ADC sampling data and preset current rating data. The apparatus has the advantages of a high safety, a fast response speed, a stable process, a high consistency and a low cost.

Abstract: A roof system is provided. The roof system includes a roof body capable of forming a flat roof or a corrugated roof, where the roof body is provided on a roof pillar; a gutter system is provided at a valley position of the corrugated roof or on the flat roof; a skylight system is further provided at a pitched roof or a ridge of the corrugated roof or on the flat roof; and a pressure relief adjustment component is provided on the skylight system. According to the roof system, a plurality of roof modules are assembled into the roof body. Two adjacent ones of the roof modules are fixed by a connecting plate and a self-locking component when assembled. A plurality of reinforcing points work cooperatively, so the roof system achieves a high utilization rate, and ensures the overall stability and bearing capacity of the roof.

Abstract: A system includes at least one sensor and at least one controller. The at least one sensor is configured to generate a first weight signal corresponding to a first weight of a first lot of substrates, and a second weight signal corresponding to a second weight of a second lot of substrates. The at least one controller is coupled to the at least one sensor to receive the first weight signal and the second weight signal. The at least one controller is configured to convert a weight difference between the first weight and the second weight into a number of substrates each having a predetermined weight. The at least one controller is further configured to, based on the converted number of substrates, control a processing apparatus to rotate the first lot of substrates and the second lot of substrates simultaneously.

Abstract: The present invention provides an antibody and a fusion protein for treating coronaviruses and use thereof. The 6-HB interference polypeptide in the fusion protein of the present invention and a part of an antibody or an antigen-binding fragment work synergistically to prevent fusion of SARS-COV or SARS-COV-2 virus particles with cells, and mediate phagocytosis and clearance of the virus particles by immune cells.

Abstract: Systems and methods for sharing USB room peripheral devices between a Unified Communication & Collaboration (UC&C) platform room device and a collaboration device, e.g., a wireless or non-wireless display receiver, for conducting Bring Your Own Meeting (BYOM) sessions are provided. The system may include a USB peripheral switching device operatively coupled to the room peripheral devices and the UC&C platform room device, and a collaboration device operatively coupled to the USB peripheral switching device, a plurality of user devices, and the UC&C platform room device. The USB peripheral switching device automatically switches from transferring data between the room peripheral devices and the UC&C platform room device when the collaboration device is in an idle state, to transferring data between the room peripheral devices and the collaboration device when the collaboration device is in an active state to conduct the BYOM conference.

Abstract: A method for blockchain-based time stamping for digital signature is disclosed. The method includes two participants: a signer who signs a message, a verifier who verifies the message. In the method, the signer obtains hash values of a certain number of latest confirmed blocks in blockchain, binds these hash values and the message together to be a new message. The signer then generates a signature of the new message and inserts identification data of this signature and the new message into a transaction of blockchain. This method ensures that the generation time of the signature is prior to the generation time of the block which contains the signature and, at the same time, is after the generation time of the blocks whose hash values are included in the signature, which produces an accurate time interval for the digital signature.

Abstract: The present invention belongs to the technical field of food processing, and in particular, relates to an adaptive quantitative sub-packaging method for fried rice with multiple side dishes in a central kitchen and an apparatus therefor. The present invention mainly includes self-construction of a key side dish recognition model, self-evaluation of the key side dish recognition model, adaptive quantification of batch fried rice, and the apparatus matched with the three-step operation.

Abstract: The present invention belongs to the technical field of food processing, and in particular, relates to an adaptive quantitative sub-packaging method for fried rice with multiple side dishes in a central kitchen and an apparatus therefor. The present invention mainly includes self-construction of a key side dish recognition model, self-evaluation of the key side dish recognition model, adaptive quantification of batch fried rice, and the apparatus matched with the three-step operation.

Abstract: Systems and methods for reducing latency on a collaborative platform are provided. The collaborative platform involves a display, a moderator device, one or more member devices, and a receiver in communication with the display, the moderator device, and the one or more member devices. To reduce latency of the collaborative platform, the receiver generates an overlay image based on user input received from the display, as well as user type of the user input, generates an overlaid image based on the overlay image, and transmits the overlaid image for display, while a collaboration application generates new real image(s) based on the user input for display. The overlaid image generated may be indicative of actual user input as well as predicted user input using extrapolation and/or machine learning.

Abstract: The present invention relates to a method and system for installing software onto a client in the NIM environment and corresponding client. Said method includes: initializing said client, wherein a virtual mapping device associated with a memory driver of the client is created, the virtual mapping device for scheduling between the client's memory driver and the remote NIM server with respect to the I/O operation for running the software so as to direct the I/O operation for running said software to the client's memory driver or the remote NIM server; running said software on the client; acquiring the resources desired for running software; and conducting data migration operation from the NIM server to the client while running said software, wherein the migrated data is the resource data obtained from NIM server and desired for installing said software; and the software installation being completed when all the data desired for installing said software are migrated to the memory driver of the client.

Abstract: Systems and methods for reducing latency on a collaborative platform are provided. The collaborative platform involves a display, a moderator device, one or more member devices, and a receiver in communication with the display, the moderator device, and the one or more member devices. To reduce latency of the collaborative platform, the receiver generates an overlay image based on user input received from the display, as well as user type of the user input, generates an overlaid image based on the overlay image, and transmits the overlaid image for display, while a collaboration application generates new real image(s) based on the user input for display. The overlaid image generated may be indicative of actual user input as well as predicted user input using extrapolation and/or machine learning.

Abstract: Provided herein are sulfonate-based water-soluble photoswitches that, in contrast to existing systems, trigger a volumetric expansion in hydrogels upon exposure to photons; contraction is in turn observed under dark conditions in a highly reversible manner.