Abstract: An active edge caching method based on community discovery and weighted federated learning for selecting an optimal caching user and developing an optimal caching strategy; user grouping method based on community discovery is first provided, users are divided into different user groups according to users' mobility and social attributes, degrees of importance of different users are computed in each user group, and most important user is selected as a caching node to provide content distribution services; a content popularity prediction framework based on attention weighted federated learning is provided for combining attention weighted federated learning mechanism with deep learning algorithm to predict future user preferences for different content, so as to improve content popularity prediction accuracy and solve user privacy disclosure; finally, hot content is cached on selected caching users according to prediction results, to achieve goals of reducing network transmission latency and network operation cost

Abstract: A device for manufacturing a storage container by integrally winding multiple bundles of fibers in a double-layer spiral circumferential direction. The device includes a rotary drive unit and two radial slide drive units provided at two sides of the rotary drive unit, each of the two radial slide drive units is provided with several spiral winding guide wire tubes in a circumferential array and drives the spiral winding guide wire tubes to perform a radial telescopic movement, the rotary drive unit drives the spiral winding guide wire tubes on the two radial slide drive units to perform a rotation movement, the rotary drive unit is connected to the two radial slide drive units by means of brackets, and a rack plate is connected to one side of each of the two radial slide drive units away from the rotary drive unit.

Abstract: A communication connection resuming method, a base station and a computer-readable storage medium are disclosed. The method may include, sending a UE information acquisition request to the source MN, in response to a reception of a radio resource control (RRC) Resume request sent by the UE; acquiring RRC configuration information of the source SN fed back by the source MN; determining a target SN, and sending RRC configuration information to the target SN, to instruct the target SN to complete a configuration according to the RRC configuration information; and resuming a dual-connectivity communication of the UE in cooperation with the target SN with the configuration completed.

Abstract: A non-uniform beam spatial modulation method and system applicable to multi-antenna communication and sensing integration; the method includes: finding an ISAC beam that satisfies both sensing performance and communication performance, including: constructing a communication transmitting signal; constructing a communication receiving signal; constructing an upper bound of the integrated communication and sensing spectral efficiency of the non-uniform beam spatial modulation; constructing an objective function of the sensing performance; and finding a candidate beam matrix and a beam activation probability distribution where the spectrum frequency is maximum and the sensing performance is best; and finding a spectral efficiency of non-uniform beam spatial modulation by means of the ISAC beam. Under the condition of meeting the same sensing performance requirement, the spectral efficiency of the present invention is higher.

Abstract: A blade roller device (100) includes a first blade roll unit (110), a second blade roll unit (120) spaced apart from the first blade roll unit (110), and a first rotate lever (130). The first blade roll unit (110) includes a first slewing mechanism (111) and a first blade roll (112) wound upon the first slewing mechanism (111). The second blade roll unit (120) includes a second slewing mechanism (121) coupled to the first rotate lever (130) and a second blade roll (122) formed by pulling a segment of the first blade roll (112) to the second slewing mechanism (121) and winding the segment of the first blade roll (112) upon the second slewing mechanism (121). A rotation of the first rotate lever (130) in a first direction is capable of pulling the segment of first blade roll (112) to the second slewing mechanism (121).

Abstract: A communication compression method based on model weight distribution in federated learning, and belongs to the technical field of wireless communication. Based on the existing federated average idea in federated learning, counts the distribution of model weight information to be transmitted between nodes during each communication, then performs scalar quantization and compression through Lloyd-Max quantizer according to their distribution characteristics, then encodes with Huffman coding method, and finally sends the codes to the target node, thereby the minimum mean square quantization error is realized and the number of bits required for communication is reduced.

Abstract: A hybrid network antenna includes a reflection plate, a low frequency antenna array, and a dual-beam antenna array. The reflection plate includes a flat member and bending members formed by bending the two ends of the flat member. The low frequency antenna array is arranged on the flat member. The dual-beam antenna array include beam antenna sub-arrays located on both sides of the low frequency antenna array. The beam antenna sub-array on each side of the low frequency array includes a plurality of first high frequency radiating element arrays disposed in intervals along the width direction of the reflection plate. The plurality of high frequency radiating element arrays of each beam antenna sub-array are arranged on the reflection plate in different planes or a common plane.

Abstract: A single-surface position sensor and a positioning method thereof are disclosed.

Abstract: A single friction surface microgenerator and a method of manufacturing the same are described. The microgenerator comprises an insulating substrate with a surface-friction-structured layer on its upper surface and a first induction electrode and a second induction electrode on its lower surface. The first induction electrode is located to correspond to the surface-friction-structured layer that is used as a friction surface while the second induction electrode is located periphery of the first induction electrode and insulatedly spaced from the first induction electrode. The single friction surface microgenerator according to the present disclosure has a wide usage and the method of manufacturing the same may be performed through a simply and high-effective production process, processed at low cost, and may achieve high yield.

Abstract: A single-surface position sensor and a positioning method thereof are disclosed.

Abstract: A polypeptide is provided specifically binding to CD34 molecule and use thereof, the polypeptide is selected from at least one of polypeptide 17 and polypeptide 19, amino acid sequences of the polypeptide 17 and the polypeptide 19 are as shown in SEQ ID NO: 1 and SEQ ID NO: 2 in sequence listing. The polypeptide provided by the present application can specifically bind to CD34, and can be produced by artificial synthesis or genetic engineering method. Compared with antibody, the polypeptide provided by the present invention has characteristics such as low molecular weight, easy preparation and less immunological rejection; and it has little toxic side-effects, its binding to the CD34+ cell won't obviously kill the target cell and inhibit its proliferation. The polypeptide provided by the present invention can be used as markers for CD34 positive expression cells, and also can be used as substitute of immunofluorescence CD34 antibody.

Abstract: The disclosure discloses a vibration generator and a stacked-structure generator. The vibration generator includes an arched friction unit 1 and an arched friction unit 2. An concave inner surface of the arched friction unit 1 and an concave inner surface of the arched friction unit 2 are located opposite to each other as friction surfaces; and, the arched friction units 1 and 2 are provided with electrodes at convex outer surfaces thereof, which are concurrently served as supporting layers. The stacked-structure generator includes a plurality of the vibration generators, and several sets of a first geometrically complementary-shaped friction unit, which matches the electrode of the vibration generator that is concurrently served as the supporting layer, and a second geometrically complementary-shaped friction unit.

Abstract: The present invention discloses a folding vibration microgenerator and a method of manufacturing the same. The microgenerator comprises a foldable sandwiched substrate, wherein the foldable substrate comprising two flexible insulating substrates and an induction electrode located between the two flexible insulating substrates, in which the induction electrode is constructed by two complementary comb-shaped electrodes. The foldable substrate has upper and lower surfaces, on which the first friction structure units and the second friction structure units are respectively periodically distributed, and the first friction structure units corresponds to the odd-numbered comb teeth of the induction electrode and the second friction structure units corresponds to the even-numbered comb teeth of the induction electrode. The foldable substrate is folding at gaps between two adjacent comb teeth of the induction electrode as a serrate shape, thereby forming a folding vibration microgenerator.

Abstract: The present disclosure discloses an integrated micro/nanogenerator and a method of fabricating the same The integrated micro/nanogenerator has a structure comprising a conducting layer, a PET layer, a PDMS layer, a micro-nano hierarchical PDMS array and a metal film layer, the conducting layer being manufactured on a surface of the PET layer, the PET layer being made of polyethylene terephthalate; the PDMS layer being made of polydimethylsiloxane, and the micro-nano hierarchical PDMS array being manufactured on a surface of the PDMS layer.

Abstract: The present disclosure discloses an integrated micro/nanogenerator and a method of fabricating the same The integrated micro/nanogenerator has a structure comprising a conducting layer, a PET layer, a PDMS layer, a micro-nano hierarchical PDMS array and a metal film layer, the conducting layer being manufactured on a surface of the PET layer, the PET layer being made of polyethylene terephthalate; the PDMS layer being made of polydimethylsiloxane, and the micro-nano hierarchical PDMS array being manufactured on a surface of the PDMS layer.

Abstract: The present invention discloses a folding vibration microgenerator and a method of manufacturing the same. The microgenerator comprises a foldable sandwiched substrate, wherein the foldable substrate comprising two flexible insulating substrates and an induction electrode located between the two flexible insulating substrates, in which the induction electrode is constructed by two complementary comb-shaped electrodes. The foldable substrate has upper and lower surfaces, on which the first friction structure units and the second friction structure units are respectively periodically distributed, and the first friction structure units corresponds to the odd-numbered comb teeth of the induction electrode and the second friction structure units corresponds to the even-numbered comb teeth of the induction electrode. The foldable substrate is folding at gaps between two adjacent comb teeth of the induction electrode as a serrate shape, thereby forming a folding vibration microgenerator.

Abstract: A single friction surface microgenerator and a method of manufacturing the same are described. The microgenerator comprises an insulating substrate with a surface-friction-structured layer on its upper surface and a first induction electrode and a second induction electrode on its lower surface. The first induction electrode is located to correspond to the surface-friction-structured layer that is used as a friction surface while the second induction electrode is located periphery of the first induction electrode and insulatedly spaced from the first induction electrode. The single friction surface microgenerator according to the present disclosure has a wide usage and the method of manufacturing the same may be performed through a simply and high-effective production process, processed at low cost, and may achieve high yield.

Abstract: The disclosure discloses a vibration generator and a stacked-structure generator. The vibration generator includes an arched friction unit 1 and an arched friction unit 2. An concave inner surface of the arched friction unit 1 and an concave inner surface of the arched friction unit 2 are located opposite to each other as friction surfaces; and, the arched friction units 1 and 2 are provided with electrodes at convex outer surfaces thereof, which are concurrently served as supporting layers. The stacked-structure generator includes a plurality of the vibration generators, and several sets of a first geometrically complementary-shaped friction unit, which matches the electrode of the vibration generator that is concurrently served as the supporting layer, and a second geometrically complementary-shaped friction unit.

Abstract: An optical switch includes: a semiconductor substrate, including a first rotation part and a first torsion beam disposed at two ends of the first rotation part, where the first torsion beam is configured to drive the first rotation part to rotate; a microreflector, disposed on a surface of the first rotation part of the semiconductor substrate; a first latching structure, disposed on a surface of the first torsion beam, the first latching structure including a form self remolding (FSR) material layer and a thermal field source, where the thermal field source is configured to provide a thermal field for the FSR material layer and the FSR material layer is configured to undergo form remolding under the thermal field, so as to latch the first rotation part and the microreflector in a position after rotation.

Abstract: The invention provides a dipole antenna and mobile communication terminal. The dipole antenna comprises a first vibrator, a second vibrator, a feed terminal and a dielectric slab, the first vibrator and the second vibrator being provided anti-symmetrically on the dielectric slab, wherein the first vibrator comprises a first resonant ring configured to transmit and receive radio signals in a GSM900 band and a first antenna arm configured to transmit and receive radio signals in a DCS1800 band, the first antenna arm being connected to the first resonant ring; the second vibrator comprises a second resonant ring configured to transmit and receive radio signals in the GSM900 band and a second antenna arm configured to transmit and receive radio signals in the DCS1800 band, the second antenna arm being connected to the second resonant ring; the first antenna arm is connected to the second antenna arm through the feed terminal.