Abstract: A method for preparing (S)-nicotine by reduction includes conducting a reduction process on an alkene compound as shown in Formula I and/or an iminium cation compound as shown in Formula II, thereby producing (S)-nicotine. The method is simple, safe, reliable, and yields both high purity and high quantities of (S)-nicotine production.

Abstract: A method for rapidly detecting pesticides based on thin-layer chromatography (TLC) and enzyme inhibition principles. The method includes the following steps: cutting a TLC plate into a rectangle, and using one end of the rectangle to contact a sample extract to form a pesticide residue separation area; covering the other end of the rectangle with a small piece cut from filter paper or glass fiber and fixing on a piece of enzyme inhibition reaction test paper to form a pesticide enrichment area; pasting a side of the enzyme inhibition reaction test paper away from the pesticide residue separation area with a piece of filter paper immobilized with a chromogenic agent to form a substrate color development area; and performing color reaction.

Abstract: A display panel including a pixel circuit and a light-emitting element, the pixel circuit including a driving transistor, a data writing transistor, a threshold compensation transistor, a first reset transistor, a bias transistor, and a light-emitting control module, the data writing transistor being electrically connected to a first terminal of the driving transistor, the threshold compensation transistor being connected in series between a gate of the driving transistor and a second terminal of the driving transistor, and configured to detect and self-compensate a threshold voltage deviation of the driving transistor, the first reset transistor and the bias transistor being electrically connected to the second terminal of the driving transistor, the light-emitting control module being connected in series with the driving transistor and the light-emitting element to control whether a driving current flows through the light-emitting element, the data writing transistor and the first reset transistor having th

Abstract: Provided are a display panel and a display device. The display panel includes a base substrate, a first transistor, and a planarization layer. The first transistor includes a first active layer, a first gate, a first source, and a first drain. The planarization layer is located above the first source. In the direction perpendicular to the base substrate, at least one insulating layer and a first organic area are provided between the film layer where the first active layer is located and the planarization layer. An insulating layer in the first organic area is made of organic material and the first organic area is located in a display area.

Abstract: Provided are a display panel and a display device. The display panel includes a base substrate, a first transistor, and a planarization layer. The first transistor includes a first active layer, a first gate, a first source, and a first drain. The planarization layer is located above the first source. In the direction perpendicular to the base substrate, at least one insulating layer and a first organic area are provided between the film layer where the first active layer is located and the planarization layer. An insulating layer in the first organic area is made of organic material and the first organic area is located in a display area.

Abstract: The present application discloses a collision prevention system of automated overhead hoist, including: a traveling track; overhead hoists movably mounted on the traveling track; photoelectric sensing apparatuses, arranged below the traveling track, and configured to form protection areas below the traveling track and output a feedback signal when detecting that an unexpected object enters the protection areas; and a control system, connected to the overhead hoists and the photoelectric sensing apparatuses, and configured to control at least one of the overhead hoists to stop moving upon receiving the feedback signal.

Abstract: Array substrate, display panel, display device, and method for forming array substrate are provided. The array substrate includes a substrate and at least one first thin-film transistor on the substrate. the first thin-film transistor includes a first gate electrode; a first gate electrode insulating layer on a side of the first gate electrode facing away from the substrate; a first active layer on a side of the first gate electrode insulating layer facing away from the first gate electrode; a second gate electrode insulating layer on a side of the first active layer facing away from the first gate electrode insulating layer; a second gate electrode on a side of the second gate electrode insulating layer facing away from the first active layer; and a first source electrode and a first drain electrode on the first active layer facing away from the first gate electrode insulating layer.

Abstract: Array substrate, display panel, display device, and method for forming array substrate are provided. The array substrate includes a substrate and at least one first thin-film transistor on the substrate. the first thin-film transistor includes a first gate electrode; a first gate electrode insulating layer on a side of the first gate electrode facing away from the substrate; a first active layer on a side of the first gate electrode insulating layer facing away from the first gate electrode; a second gate electrode insulating layer on a side of the first active layer facing away from the first gate electrode insulating layer; a second gate electrode on a side of the second gate electrode insulating layer facing away from the first active layer; and a first source electrode and a first drain electrode on the first active layer facing away from the first gate electrode insulating layer.

Abstract: Provided are a display panel and a display device. The display panel includes a base substrate, a first transistor, and a planarization layer. The first transistor includes a first active layer, a first gate, a first source, and a first drain. The planarization layer is located above the first source. In the direction perpendicular to the base substrate, at least one insulating layer and a first organic area are provided between the film layer where the first active layer is located and the planarization layer. An insulating layer in the first organic area is made of organic material and the first organic area is located in a display area.

Abstract: An apparatus for use in a radio aggregation unit (RAU) of a cloud radio access network (Cloud-RAN or C-RAN), the cloud-RAN including a radio cloud center (RCC) and a plurality of radio remote systems (RRS) coupled to the RCC, wherein each RRS comprises an RAU coupled to a plurality of Remote Radio Units (RRUs) is disclosed. The apparatus comprises an input circuit configured to receive a first scheduling result from the RCC and a scheduling circuit configured to generate a second scheduling result for scheduling the one or more UEs in the coverage area of the RAU. Further, the apparatus comprises a processing circuit configured to selectively schedule a select UE from one or more UEs in the coverage area of the RAU, based on the first scheduling result from the RCC or the second scheduling result or an integration of the first scheduling result and the second scheduling result, based on a predetermined threshold associated with a receipt time of the first scheduling result from the RCC at the RAU.

Abstract: This invention discloses a welding equipment for bridges, comprising a base, a fixed ring stand arranged on the top end surface of the base, a fixed block fixedly arranged on the bottom end surface of the fixed ring stand, wherein a first guide sliding groove is arranged in the top end surface of the base, a first guide sliding block in sliding fit connection with said first guide sliding groove. A welding ring stand is fixedly connected to the top end surface of said first guide sliding block; wherein a first adjusting threaded rod is in threaded fit connection with the first guide sliding block. A first motor is in power connection with one tail end of the first adjusting threaded rod. The first motor drives the first adjusting threaded rod to rotate to make the welding ring stand move to one side.

Abstract: An apparatus for use in a radio aggregation unit (RAU) of a cloud radio access network (Cloud-RAN or C-RAN), the cloud-RAN including a radio cloud center (RCC) and a plurality of radio remote systems (RRS) coupled to the RCC, wherein each RRS comprises an RAU coupled to a plurality of Remote Radio Units (RRUs) is disclosed. The apparatus comprises an input circuit configured to receive a first scheduling result from the RCC and a scheduling circuit configured to generate a second scheduling result for scheduling the one or more UEs in the coverage area of the RAU. Further, the apparatus comprises a processing circuit configured to selectively schedule a select UE from one or more UEs in the coverage area of the RAU, based on the first scheduling result from the RCC or the second scheduling result or an integration of the first scheduling result and the second scheduling result, based on a predetermined threshold associated with a receipt time of the first scheduling result from the RCC at the RAU.

Abstract: A MIMO beamforming method comprises receiving at a base station information regarding a difference between an ideal beamforming matrix and an averaged beamforming direction, using the information to construct a beamforming matrix at the base station, and performing a beamforming operation using the reconstructed beamforming matrix. Alternatively, the method comprises computing at a subscriber station an averaged beamforming direction, computing at the subscriber station a quantization index corresponding to a differential matrix in a differential codebook, and transmitting the quantization index across a wireless channel of the wireless network. The differential codebook may be constructed by identifying a codebook center and transforming a predefined codebook that is stored in a memory of a component of the wireless network.

Abstract: A MIMO beamforming method comprises receiving at a base station information regarding a difference between an ideal beamforming matrix and an averaged beamforming direction, using the information to construct a beamforming matrix at the base station, and performing a beamforming operation using the reconstructed beamforming matrix. Alternatively, the method comprises computing at a subscriber station an averaged beamforming direction, computing at the subscriber station a quantization index corresponding to a differential matrix in a differential codebook, and transmitting the quantization index across a wireless channel of the wireless network. The differential codebook may be constructed by identifying a codebook center and transforming a predefined codebook that is stored in a memory of a component of the wireless network.

Abstract: According to some embodiments, a communication module 120 may be configured to transmit data packet traffic and a management module 110 may be configured to shape the data packet traffic transmitted by the communication module 120. The management module 110 may shape the data packet traffic by buffering data packets routed at different times to the communication module 120 based on at least one power management factor.

Abstract: A MIMO beamforming method comprises receiving at a base station information regarding a difference between an ideal beamforming matrix and an averaged beamforming direction, using the information to construct a beamforming matrix at the base station, and performing a beamforming operation using the reconstructed beamforming matrix. Alternatively, the method comprises computing at a subscriber station an averaged beamforming direction, computing at the subscriber station a quantization index corresponding to a differential matrix in a differential codebook, and transmitting the quantization index across a wireless channel of the wireless network. The differential codebook may be constructed by identifying a codebook center and transforming a predefined codebook that is stored in a memory of a component of the wireless network.

Abstract: Techniques for a precoding scheme for wireless communications are described. A method and apparatus may comprise a first device for a communications system to determine a beamforming structure for a closed loop transmit beamforming scheme using channel information, one or more scaling factors and one or more integers to represent a complex vector. The beamforming structure may include a codeword, a codebook and a codeword index. Other embodiments are described and claimed.

Abstract: An embodiment of the present invention provides a method, comprising using an adaptive codebook for beamforming for communications in wireless networks.

Abstract: A MIMO beamforming method comprises receiving at a base station information regarding a difference between an ideal beamforming matrix and an averaged beamforming direction, using the information to construct a beamforming matrix at the base station, and performing a beamforming operation using the reconstructed beamforming matrix. Alternatively, the method comprises computing at a subscriber station an averaged beamforming direction, computing at the subscriber station a quantization index corresponding to a differential matrix in a differential codebook, and transmitting the quantization index across a wireless channel of the wireless network. The differential codebook may be constructed by identifying a codebook center and transforming a predefined codebook that is stored in a memory of a component of the wireless network.

Abstract: An embodiment of the present invention provides a method used in transmit beam forming, comprising, providing differential feedback by using variable differential codebooks across a plurality of feedbacks wherein the differential codebooks may have different shapes, and/or spans, and/or the numbers of codewords across feedbacks.