Abstract: The present invention relates to a transgenic corn event, QY2569-42, and further relates to a nucleic acid sequence for detecting a corn plant QY2569-42 and a detection method thereof. The nucleic acid sequence of the corn plant comprises SEQ ID NO:1, SEQ ID NO:2, SEQ ID NO:3, SEQ ID NO:4, SEQ ID NO:5, SEQ ID NO:6, SEQ ID NO:7, SEQ ID NO:8, SEQ ID NO:10, SEQ ID NO:11 and/or SEQ ID NO:12, or a nucleic acid sequence complementary thereto. The corn plant QY2569-42 of the present invention has good resistance against lepidopteran insects and good tolerance to glufosinate herbicide without impacts on yield. In addition, the detection method can accurately and rapidly identify whether a biological sample comprises DNA molecules of transgenic corn event QY2569-42.

Abstract: A tandem photovoltaic device includes a silicon photovoltaic cell having a silicon layer, a perovskite photovoltaic cell having a perovskite layer, and an intermediate layer between a rear side of the perovskite photovoltaic cell and a front (sunward) side of the silicon photovoltaic cell. The front side of the silicon layer has a textured surface, with a peak-to-valley height of structures in the textured surface of less than 1 ?m or less than 2 ?m. The textured surface is planarized by the intermediate layer or a layer of the perovskite photovoltaic cell. Forming the tandem photovoltaic device includes texturing a silicon-containing layer of a silicon photovoltaic cell and operatively coupling a perovskite photovoltaic cell comprising a perovskite layer to the silicon photovoltaic cell, thereby forming a tandem photovoltaic device and planarizing the textured surface of the silicon-containing layer of the silicon photovoltaic cell.

Abstract: The described technology is generally directed towards a transport protocol for latency sensitive applications. The disclosed transport protocol is “semi-reliable” in that it allows for specification of an importance of data being transmitted, thereby allowing important data to be sent reliably, while other data can be dropped if necessary, e.g., under bad network conditions. A deadline can be specified for such other data, and if the other data cannot be sent prior to the deadline, it can be dropped. Furthermore, the disclosed transport protocol can allow for early discovery of network jitter. A client device can send regular acknowledgments which identify most recently received data packets as well as a number of “heartbeat transmissions” received at the client device. A server device can use the acknowledgments to discover and respond to jitter.

Abstract: A polishing pad includes a polishing layer. The polishing layer includes a polyurethane obtained by reacting a multifunctional isocyanate, a polyol composition, and a polyamine composition. The polyamine composition includes one and/or more of diamines and/or triamines and/or polyamines with more than 3 aminos. An average molecular weight of the polyamine composition is between 200 and 400. An average functionality of the polyamine composition is greater than 2 and not higher than 2.20. Proportions of the diamines and the triamines relative to the total amount of the polyamine composition are 77%-96%:3%-12%, respectively, in the polyamine composition.

Abstract: A construction process for partially bonded prestressed uplift-resistant glass fiber anchor piles avoiding stress concentration includes the following steps: construction site management, determining anchor pile locations, drilling a borehole using a spiral drilling rig, lowering a pre-fabricated glass fiber rod cage into the borehole after inspection, performing grouting, making adjustments, and repeating the above operations. The construction process adopts a layout that avoids stress concentration, demonstrating its superiority in strata with developed horizontal bedding. Simultaneously, it uses glass fiber material with good corrosion resistance, meeting the requirements for uplift-resistant anchors under corrosive conditions. It employs a partially bonded prestressed design, changing the mechanical characteristic of traditional uplift-resistant anchors from becoming looser when pulled to a wedge-like characteristic of becoming tighter when pulled.

Abstract: The present invention relates to the technical fields of genetic engineering and bioinformatics, in particular, to a method for creating a new gene in an organism in the absence of an artificial DNA template, and a use thereof. The method comprises simultaneously generating DNA breaks at two or more different specific sites in the organism's genome, wherein the specific sites are genomic sites capable of separating different genetic elements or different protein domains, and the DNA breaks are ligated to each other through non-homologous end joining (NHEJ) or homologous repair to generate a new combination of the different gene elements or different protein domains that is different from the original genome sequence, thereby creating a new gene. The new gene of the invention can change the growth, development, resistance, yield and other traits of the organism, and has great value in application.

Abstract: In one aspect, an example methodology implementing the disclosed techniques can include, by a first computing device, determining a reference image showing (e.g., encoding) an orientation of a user participating in an online meeting and receiving a video stream captured by a camera, the video stream associated with the online meeting. The method can also include, by the computing device, responsive to a determination of a change in the orientation of the user appearing within the video stream, providing modified video stream in which the orientation of the user is adjusted based on the reference image.

Abstract: A privacy-preserving and efficient low-altitude route authentication method. In the route verification information generation phase, the trusted authority center defines the legal routes of UAVs for each sentry station and generates a Bloom filter. The trusted authority center uses this filter to generate elements and send them to the sentry stations to prepare for subsequent verification. In the route verification phase, the sentry stations receive the real-time flight data of UAVs, use the Bloom filter to screen out elements of illegal routes, process them, and then send them to the trusted authority center. The trusted authority center verifies the received elements, and if the verification is successful, the corresponding routes are confirmed as legal. This method ensures that only UAVs flying on legal routes can pass the verification, protects the privacy of route information, and reduces computing and communication overheads at the same time.

Abstract: A circuit for supplying power to a switching power supply control circuit based on an auxiliary winding includes: an auxiliary winding, a switching transistor, a low dropout voltage regulator (LDO), a first diode, a second diode, a forward energy storage capacitor, and a flyback energy storage capacitor, where the auxiliary winding, the flyback energy storage capacitor, and the switching transistor form a flyback energy storage loop to charge the flyback energy storage capacitor, and the auxiliary winding, the flyback energy storage capacitor, and the switching transistor form a flyback energy storage loop to charge the flyback energy storage capacitor. In a forward state, if the voltage of the forward energy storage capacitor is less than the voltage at an output terminal of the LDO, the flyback energy storage capacitor supplies power, or if the voltage of the forward energy storage capacitor is greater, the forward energy storage capacitor supplies power.

Abstract: The present application provides a composition for agriculture, in particular for promoting root nodule growth, wherein the composition comprises 0.001-100 g/L of lipopeptide. The present application also provides Use of the composition for promoting root nodule growth. Specifically, compared with a control group without applying the composition, the root nodule quantity and the root nodule weight of each plant applying the composition are significantly increased.

Abstract: A surgical upper computer for a total knee arthroplasty, and a total knee arthroplasty system, and in the field of surgical equipment. The surgical upper computer includes a memory storing a first computer program which enables a processor to execute a first operating mode of the surgical upper computer, where the first operating mode includes: exhibiting, by an interactive interface, to a user, first information to be input, the first information including a magnitude range and change interval of a pushing force applied between a femur and a tibia; in response to user input, controlling a butting member and a push plate to apply different pushing forces at a preset joint flexion angle, and acquiring relationship data between the pushing force and a gap; and displaying the relationship data. Accordingly, the force and gap between soft tissues in the total knee arthroplasty can be acquired and displayed.

Abstract: An oral imaging device and an oral imaging system are provided. The oral imaging device includes a body, a support arm coupled to the body, and a camera module positioned at an intra-oral end of the support arm and configured to capture at least a first image including at least a first portion of a first dental arch. The support arm includes the intra-oral end and a first guide structure. And the support arm is stabilized by the first guide structure when the oral imaging device rests on a second dental arch.

Abstract: An oral imaging device includes an oral camera and a mouth opener. The oral camera includes a main body and a camera module. The camera module includes at least one camera. The mouth opener defines an imaging through hole penetrating through the mouth opener from a first end to a second end thereof. The second end of the mouth opener is configured to abut against an oral cavity structure of a user. The mouth opener is movable relative to the camera module to switch the oral imaging device between a first form and a second form. In the first form, the at least one camera faces the imaging through hole and does not exceed the second end of the mouth opener. In the second form, the at least one camera is exposed outside the imaging through hole and is configured to insert into an oral cavity of the user.

Abstract: The present invention relates to the technical fields of genetic engineering and bioinformatics, in particular, to a method for creating a new gene in an organism in the absence of an artificial DNA template, and a use thereof. The method comprises simultaneously generating DNA breaks at two or more different specific sites in the organism's genome, wherein the specific sites are genomic sites capable of separating different genetic elements or different protein domains, and the DNA breaks are ligated to each other through non-homologous end joining (NHEJ) or homologous repair to generate a new combination of the different gene elements or different protein domains that is different from the original genome sequence, thereby creating a new gene. The new gene of the invention can change the growth, development, resistance, yield and other traits of the organism, and has great value in application.

Abstract: One embodiment of the present invention discloses a remote-controlled toy vehicle with omnidirectional adjustable steering, comprising: a vehicle body having a remote control receiving circuit; a remote control device capable of communicating with the remote control receiving circuit; at least one steering means mounted on the vehicle body; and a plurality of wheels; wherein each steering means comprises a steering drive means, a pivot rod, a connecting rod, at least one swivelable member, and at least one wheel bracket, with the number of swivelable members. The present remote-controlled toy vehicle with omnidirectional adjustable steering can steer at various angles, enabling flexible control over its driving direction, while having a simple structure and offering convenient control and adjustment operations.