Abstract: A composition capable of dissolving inorganic scale in a bore comprises at least one chelating agent and at least one additive capable of enhancing the rate of dissolution of the inorganic scale in the bore. In some embodiments, the at least one additive comprises at least one non-ionic surfactant. In some embodiments, the at least one additive comprises one or more gas generation agents. In some embodiments, the at least one additive comprises at least one biosurfactant.

Abstract: A high-power four-quadrant converter system includes a double-secondary-side oil-immersed rectifier transformer with an output connected to four three-phase bridge type thyristor rectifiers, wherein every two rectifier bridges share a group of rectifier transformer secondary sides; two rectifier bridges sharing a group of rectifier transformer secondary sides are inversely connected in parallel, one of the two rectifier bridges realizes a forward output, and the other one realizes a reverse output; two groups of rectifier bridges which output in the same direction can operate independently or in parallel; when the two groups of rectifier bridges operate in parallel, reactors are connected in parallel to realize current sharing; and the rectifier bridges for the forward output and the reverse output realize free smooth transition under control of a controller, so that a four-quadrant operation of an output current is realized.

Abstract: A method for treating a geological formation surrounding a wellbore includes delivering a first media into the wellbore and into a fracture in the geological formation. The first media includes a plurality of swellable particulates configured to volumetrically swell in response to exposure to a swelling activator. The method includes delivering a second media into the wellbore and into the fracture in the geological formation, the second media being different to the first media and comprising a plurality of proppants. The first media is delivered ahead of the second media such that the swellable particulates are provided in a first region of the fracture towards a fracture tip and the proppants are provided in a second region of the fracture between the first region and the wellbore.

Abstract: A method and system provide the ability to segment a first point cloud. The first point cloud is rendered into multiple two-dimensional (2D) images. The images are segmented to generate a semantic segmentation mask. The images are then backprojected into a 3D classified point cloud. The classified point cloud is segmented into geometric segments and voting is performed for each segment to determine the majority classification and reassign minority classifications. A final point cloud is then exported as a segmented classified point cloud.

Abstract: A Helianthus plant designated ‘HEIZ0003’ is disclosed. Embodiments include seeds of Helianthus ‘HEIZ0003’, plants of Helianthus ‘HEIZ0003’, to plant parts of Helianthus ‘HEIZ0003’, and methods for producing a Helianthus plant produced by crossing Helianthus ‘HEIZ0003’ with itself or with another Helianthus variety. Embodiments include methods for producing a Helianthus plant containing in its genetic material one or more genes or transgenes and transgenic Helianthus plants and plant parts produced by those methods. Embodiments also relate to Helianthus varieties, breeding varieties, plant parts, and cells derived from Helianthus ‘HEIZ0003’, methods for producing other Helianthus lines or plant parts derived from Helianthus ‘HEIZ0003’, and the Helianthus plants, varieties, and their parts derived from use of those methods. Embodiments further include hybrid Helianthus seeds, plants, and plant parts produced by crossing Helianthus ‘HEIZ0003’ with another Helianthus variety.

Abstract: Methods, devices, systems, and techniques for managing structure leakage in semiconductor devices are provided. In one aspect, a semiconductor device includes memory cells. Each memory cell includes a transistor having a semiconductor body and a gate structure. Gate structures of transistors of two adjacent memory cells extend along a first direction in a first trench structure. The semiconductor body includes first and second terminals at opposite ends of the semiconductor body along the first direction. The semiconductor device further includes a diffusion region including a first diffusion portion, a second diffusion portion, and a middle portion along the first direction. The diffusion region surrounds a first end of the first trench structure. A first area of the first trench structure surrounded by the first diffusion portion is greater than a second area of the first trench structure surrounded by the middle diffusion portion and the second diffusion portion.

Abstract: The disclosure relates to garments, specifically adjustable maternity and nursing brassieres and tops having multiway adjustability. The brassieres disclosed herein can be adjusted at the band and straps along with the cup size and cup lining to rapidly accommodate breast changes during and after pregnancy, and particularly during breastfeeding.

Abstract: The present invention relates to the technical field of vaccine preparation, and particularly, to a bivalent inactivated EV71-CA16 vaccine, a method for preparing the same, and use thereof. The present invention implements the preparation by means of separately adsorbing a monovalent viral stock solution containing an EV71 antigen and a monovalent viral stock solution containing a CA16 antigen with an adjuvant and then mixing same, thereby improving the content of the EV71 antigen and the CA16 antigen in the vaccine substance and greatly improving the adsorption rate and recovery rate of EV71 and CA16 antigens. Moreover, the bivalent EV71-CA16 viral antigen can cause positive seroconversion and up-regulation of the corresponding neutralizing antibody and induce a higher serum antibody level, thus facilitating the preparation of the bivalent inactivated EV71-CA16 vaccine and preventing hand-foot-and-mouth disease.

Abstract: The present utility model relates to a toilet. The toilet comprises: a seat body having a sewage accommodating bowl; a ring flushing pipeline, the ring flushing pipeline being used for performing ring flushing on the sewage accommodating bowl; a bottom flushing pipeline, the bottom flushing pipeline being used for performing bottom flushing on the sewage accommodating bowl; and a flush valve, the flush valve being capable of being in fluid communication with at least one of the ring flushing pipeline and the bottom flushing pipeline, such that water for flushing flows to the sewage accommodating bowl via the flush valve. A first power supply apparatus is arranged in the seat body, and the first power supply apparatus is configured to supply power to the flush valve.

Abstract: A composition capable of scavenging or reducing sulfur-containing compounds in a fluid comprises a hydrogen sulfide scavenger; and a dispersant, wherein the dispersant comprises or consists of microfibrillated cellulose (MFC).

Abstract: A contact image sensor is provided, including: a control unit configured to receive output pulses from an encoder, where the control unit includes a comparator configured to compare the output pulses with a preset scanning cycle stored in the register to obtain an illumination control signal; an illumination unit configured to illuminate an object to be detected based on the illumination control signal; a scanning unit configured to scan the object to be detected based on the scanning trigger signal to obtain a scanning signal; a data processing unit configured to process the scanning signal to obtain an initial scanning result; and a data output unit configured to obtain a target scanning result based on the initial scanning result and output the target scanning result based on the output trigger signal.

Abstract: A pixel data determination method and apparatus, and an electronic device are provided. The method includes: sending a pixel data collection instruction to a line scan sensor; receiving first photosensitive pixel data corresponding to a target pixel row sent by the line scan sensor; cyclically and sequentially sending a preset pixel row movement instruction and the pixel data collection instruction to the line scan sensor until receiving second photosensitive pixel data and third photosensitive pixel data corresponding to the target pixel row sent by the line scan sensor; and determining target pixel data corresponding to the target pixel row based on a color correction coefficient corresponding to the line scan sensor, as well as the first photosensitive pixel data, the second photosensitive pixel data, and the third photosensitive pixel data corresponding to the target pixel row.

Abstract: The disclosure relates to garments, specifically adjustable maternity and nursing brassieres and tops having multiway adjustability. The brassieres disclosed herein can be adjusted at the band and straps along with the cup size and cup lining to rapidly accommodate breast changes during and after pregnancy, and particularly during breastfeeding.

Abstract: Apparatus and associated methods relate to a pole-zero balanced power switching regulating system for high power and frequency application. In an illustrative example, a trans-inductor voltage regulator (TLVR) may include at least two phases. For example, each phase may include a current inducing circuit. A second-order current sensing circuit (SOCSC) operably coupled to the TLVR may be configured to measure the current flow of each phase. In some implementations, the TLVR may include a first transfer function with two zeros and one pole and the SOCSC may include a second transfer function with two DCR-poles and one DCR-zero. For example, a difference between corresponding poles and zeros of the first and second transfer functions may effectively cancel each other. For example, a gain and phase difference between the first and the second transfer functions are close to zero. Various embodiments may advantageously allow fast transient current measurement at the TLVR.

Abstract: Provided is an augmented reality device. The augmented reality device includes a first projection assembly and a first display assembly. The first display assembly is disposed on a light exit side of the first projection assembly. The first projection assembly includes a first scanner, a first laser, and a first lens group. The first display assembly includes a first holographic diffraction grating and a first lens. An exposure device is also provided.

Abstract: A method for generating a high-resolution pseudo-reflectivity image of a subsurface region includes receiving seismic data associated with a subsurface region and captured by one or more seismic receivers, constructing a velocity model of the subsurface region based on the received seismic data, performing a seismic migration of the received seismic data based on the constructed velocity model to obtain migrated seismic data, computing polarized normal vectors associated with one or more subsurface reflectors of the subsurface region based on the migrated seismic data, and generating a pseudo-reflectivity image of the subsurface region based on both the computed polarized normal vectors.

Abstract: A method for creating a fluid barrier in a geological formation surrounding a wellbore includes delivering a plurality of swellable particulates into the wellbore and into a first zone of the formation, the plurality of swellable particulates configured to volumetrically swell to create a fluid barrier in response to exposure to a swelling activator. The method further includes exposing the plurality of swellable particulates to the swelling activator in the first zone of the formation to create the fluid barrier and establish a restriction against fluid migration through the first zone.