Abstract: Embodiments of this application provide a filter and a method for adjusting performance of a filter, so as to quickly adjust performance of a filter. The filter includes at least two acoustic wave resonators; and a performance adjustment structure, connected to an output end of a first acoustic wave resonator and an input end of a second acoustic wave resonator, where the first acoustic wave resonator and the second acoustic wave resonator are any two of the at least two acoustic wave resonators, the performance adjustment structure includes a capacitor structure and/or an inductor structure, and the performance adjustment structure is configured to adjust an energy coupling mode between the first acoustic wave resonator and the second acoustic wave resonator.

Abstract: A surface cleaning apparatus includes a base unit configured to be moved over a surface to be cleaned, an upper unit coupled with the base unit, and a handle coupled with the upper unit and moveable between a folded position and an upright position.

Abstract: In some embodiments, the disclosure relates generally to methods, as well as related systems, compositions, kits, apparatuses and computer-readable media, comprising a multiplex molecular tagging procedure that employs a plurality of tags that are appended to a plurality of polynucleotides. The tags have characteristics, including a sequence, length and/or detectable moiety, or any other characteristic, that uniquely identifies the polynucleotide molecule to which it is appended, and permits tracking individual tagged molecules in a mixture of tagged molecules. For example, the tag having a unique tag sequence, can uniquely identify an individual polynucleotide to which it is appended, and distinguish the individual polynucleotide from other tagged polynucleotides in a mixture. In some embodiments, the multiplex molecular tagging procedure can be used for generating error-corrected sequencing data and for detecting a target polynucleotide which is present at low abundance in a nucleic acid sample.

Abstract: The present invention provides a novel method for producing the rice haploid, i.e., producing the rice haploid by rice×maize hybridization. In this method, rice is used as the female parent, and the rice panicle is emasculated and then pollinated with fresh maize pollens; the emasculated panicle is sprayed with 2, 4-D solution at 50-200 mg/L 24 h after pollination, and after 15-20 days the rice panicle is cut off to collect caryopses; and the haploid embryos are obtained by dissectting caryopses asepticlly, then inoculated and cultured with ½MS medium, then the haploid embryos directly germinate into rice haploid seedlings. Compared with the existing main methods for producing the rice haploid, such as anther culture and isolated microspore culture, the rice haploid production method of the present invention reduces the dependence on rice genotypes, does not produce mixture of haploid and diploid plants, contains no albino seedling, and is simpler in technical operation.

Abstract: The present invention relates to a manufactured graphene/metal or metalloid core-shell composite and manufacturing method thereof. The method comprising: using a modified graphene oxide as a base, then performing concentration and steam drying followed by organic solvent replacement to obtain a modified graphene oxide organic solvent; using a liquid-phase self-assembly method to coat the modified graphene oxide onto a surface of the metal or metalloid to form a graphene/metal or metalloid coated particle solution, then filtering and drying to obtain the graphene metal/metalloid core-shell composite. The method improves upon a conventional organic and inorganic material coating technique, and reduces an impact of a water-based solvent and high temperature on a highly reactive metal and metalloid, thereby expanding the feasibility of the coating technique and addressing a barrier of applicability of graphene and reactive metal or metalloid in the field of energetic materials.

Abstract: A surface cleaning apparatus includes a base unit configured to be moved over a surface to be cleaned, an upper unit coupled with the base unit, and a handle coupled with the upper unit and moveable between a folded position and an upright position.

Abstract: Disclosed are compositions and methods for the preparation of RNA libraries for sequencing, gene expression profiling, microarray and other uses and for simplification of the library preparation process. The disclosure provides blocking oligonucleotides which bind to byproduct nucleic acid molecules formed during the ligation of adapters to nucleic acid segments prior to sequencing and inhibit or block amplification of the byproduct nucleic acid molecules in subsequent amplification reactions. Methods for library preparation using blocking oligonucleotides are also provided.

Abstract: A surface cleaning apparatus includes a base unit configured to be moved over a surface to be cleaned, an upper unit coupled with the base unit, and a handle coupled with the upper unit and moveable between a folded position and an upright position.

Abstract: Disclosed are compositions and methods for the preparation of RNA libraries for sequencing, gene expression profiling, microarray and other uses and for simplification of the library preparation process. The disclosure provides blocking oligonucleotides which bind to byproduct nucleic acid molecules formed during the ligation of adapters to nucleic acid segments prior to sequencing and inhibit or block amplification of the byproduct nucleic acid molecules in subsequent amplification reactions. Methods for library preparation using blocking oligonucleotides are also provided.

Abstract: A vacuum cleaner includes a base housing having a suction nozzle with a front suction nozzle opening provided on the front of the base housing, a source of suction in fluid communication with the suction nozzle for generating a working air stream through the upper unit, and a diverter assembly to selectively restrict a portion of the front suction nozzle opening.

Abstract: A service network for access procedure enhancement includes a radio access network performing wireless transmissions and receptions to and from a mobile communication device. The service network also includes a control node receiving an access probe from the mobile communication device via the radio access network, determining whether the access probe indicates that a length of message data is less than a threshold, and transmitting a pre-acknowledgement of the access probe to the mobile communication device via the radio access network in response to the length of the message data being less than the threshold.

Abstract: A method for detecting a signal, used in a multi-input multi-output (MIMO) communications system, including: receiving a vector associated with data bits transmitted from the MIMO communications system; finding a first layer from the received vector according to a determining condition, wherein the received vector includes multiple layers, and the multiple layers include the first layer and remaining layers; performing a first scanning procedure for the multiple layers of the received vector to obtain log likelihood ratios (LLR) corresponding to the data bits transmitted from the remaining layers; obtaining a received vector of the first layer according to an equivalent received vector of the remaining layers; and performing a second scanning procedure on data bits of the first layer according to the received vector of the first layer to generate an LLR corresponding to the data bits of the first layer.

Abstract: Provided herein are methods and related systems for controlling droplet spreading on a surface, including droplets in which a biological component is suspended. A biological solution is provided as a droplet to a surface. Interference fringes generated by the droplet on the surface are imaged, wherein the imaging is over a time course during which the droplet spreads on the surface. A droplet parameter is determined from the imaging step and a process parameter controlled to obtain an interference fringe pattern corresponding to a desired droplet parameter. In this manner, well-controlled droplet spreading is achieved, which is important in a range of applications, including assays that rely on good metaphase spreading.

Abstract: A method for detecting a signal, used in a multi-input multi-output (MIMO) communications system, including: receiving a vector associated with data bits transmitted from the MIMO communications system; finding a first layer from the received vector according to a determining condition, wherein the received vector includes multiple layers, and the multiple layers include the first layer and remaining layers; performing a first scanning procedure for the multiple layers of the received vector to obtain log likelihood ratios (LLR) corresponding to the data bits transmitted from the remaining layers; obtaining a received vector of the first layer according to an equivalent received vector of the remaining layers; and performing a second scanning procedure on data bits of the first layer according to the received vector of the first layer to generate an LLR corresponding to the data bits of the first layer.

Abstract: A wireless communications device is provided with a plurality of card slots, a first wireless communications module, and a second wireless communications module. The card slots are inserted with at least one subscriber identity card. The first wireless communications module performs wireless transceiving in compliance with at least a first wireless technology. The second wireless communications module determines at least a first subscriber number and a second subscriber number from the at least one subscriber identity card, and enables the wireless transceiving of the first wireless communications module using the first subscriber number. Also, the second wireless communications module performs wireless transceiving in compliance with at least a second wireless technology using the second subscriber number.

Abstract: A wireless communications device is provided with a plurality of card slots, a first wireless communications module, and a second wireless communications module. The card slots are inserted with at least one subscriber identity card. The first wireless communications module performs wireless transceiving in compliance with at least a first wireless technology. The second wireless communications module determines at least a first subscriber number and a second subscriber number from the at least one subscriber identity card, and enables the wireless transceiving of the first wireless communications module using the first subscriber number. Also, the second wireless communications module performs wireless transceiving in compliance with at least a second wireless technology using the second subscriber number.

Abstract: Methods, apparatus and systems for establishing voice communication are provided herein. An exemplary method can be implemented by an electronic device. A request initiated by a user can be received. The request can include one of a voice-communication request, a voice-communication-invitation request, a temporary-voice-communication request, a temporary-voice-communication-invitation request, an exclusive-voice-communication request, and an exclusive-voice-communication-invitation request. According to the request, a voice-room number can be obtained from a first server or a second server, without using third-party communication software. The method further includes starting a voice client and entering a voice room directly using the voice client, according to the voice-room number.

Abstract: A vacuum cleaner includes a base housing having a suction nozzle with a front suction nozzle opening provided on the front of the base housing, a source of suction in fluid communication with the suction nozzle for generating a working air stream through the upper unit, and a diverter assembly to selectively restrict a portion of the front suction nozzle opening.

Abstract: A transverse electromagnetic (TEM) mode dielectric filter and a manufacturing method thereof are provided. The mode dielectric filter provided by the present invention includes a dielectric body and a silver plating layer, where the silver plating layer covers a surface of the dielectric body, and a dielectric constant of the dielectric body is less than or equal to 21. The TEM dielectric filter provided by the present invention has a large energy storage space in a single resonant cavity of a dielectric material, and has a high quality factor. An insertion loss of the TEM dielectric filter is low, and electrical conductivity of the silver plating layer is high.

Abstract: A service network for access procedure enhancement includes a radio access network performing wireless transmissions and receptions to and from a mobile communication device. The service network also includes a control node receiving an access probe from the mobile communication device via the radio access network, determining whether the access probe indicates that a length of message data is less than a threshold, and transmitting a pre-acknowledgement of the access probe to the mobile communication device via the radio access network in response to the length of the message data being less than the threshold.