Abstract: A casing/liner string buoyancy arrangement including a casing/liner string, and a material defining a volume disposed within the string, the material excluding downhole fluids from the volume, the volume being of a lower specific gravity than the same downhole fluids. A method for managing buoyancy of a casing/liner string including configuring a casing/liner string, running the string, and selectively maintaining or degrading the material to adjust buoyancy of the string. A borehole system including a borehole in a subsurface formation, and an arrangement disposed in the borehole.

Abstract: Provided are a light-emitting device and a manufacturing method thereof, a display panel and a display device. The light-emitting device includes a plurality of light-emitting units including a first, a second, and a third light-emitting unit. Each light-emitting unit includes a micro-cavity structure including an anode, a hole transport layer, a functional layer, and a cathode. The functional layer of the first light-emitting unit includes a first light-emitting layer, a first buffer layer between the first light-emitting layer and the hole transport layer of the first light-emitting unit, and a second buffer layer between the first buffer layer and the first light-emitting layer. The material of the second buffer layer is different from that of the first buffer layer, the second buffer layer has a physical thickness less than or equal to 30 nanometers and an optical thickness less than or equal to 60 nanometers.

Abstract: A light emitting substrate includes: a first base substrate, a plurality of light emitting devices located on the first base substrate, wherein the light emitting devices include a first light emitting device, a second light emitting device and a third light emitting device, each of the light emitting devices includes a first electrode layer, a light emitting functional layer and a second electrode layer which are stacked, the light emitting functional layer includes an emitting layer including a first emitting layer in the first light emitting device, a second emitting layer in the second light emitting device and a third emitting layer in the third light emitting device; the material of the first emitting layer is different from the material of the second emitting layer, and the material of the first emitting layer is different from the material of the third emitting layer.

Abstract: Provided is an electric cable driving mechanism having a self-return function. The electric cable driving mechanism includes a housing assembly, an electric motor, a three-stage transmission mechanism and a multifunctional nut, the three-stage transmission mechanism includes a coil spring assembly, the electric motor is fixed to the housing assembly, and the three-stage transmission mechanism and the multifunctional nut are mounted in the housing assembly; and the multifunctional nut includes two cable mounting grooves and is in transmission connection to the electric motor by means of the three-stage transmission mechanism. According to the electric cable driving mechanism having a self-return function of the present disclosure, the three-stage transmission mechanism is used, and outputs a larger force compared with two-stage transmission; and a split multifunctional screw rod is easy to mount, such that mounting of a coil spring during assembly is prevented from scratching the screw rod.

Abstract: An electrical connector includes an insulating housing having a mating cavity and a contact module. The contact module comprises at least one contact group and an insulative component, the one contact group has a first power contact and a second power contact, each one of the first power contact and the second power contact has a retaining portion, at least one contacting portion and at least one soldering portion. The retaining portions of the first power contact and the second power contact in one contact group are arranged in a height direction in the insulative component, the contacting portions of the first power contact and the second power contact in one contact group are arranged in a transverse direction of the insulating housing, the soldering portions of the first power contact and the second power contact in one contact group are arranged in a front-and-back direction.

Abstract: A display device and a display panel thereof, and an OLED display device are provided. The OLED display device includes: a red light-emitting structure, a green light-emitting structure, and a blue light-emitting structure, where (n3z-n3xy)-(n1z-n1xy)?a first preset value, and (n3z-n3xy)-(n2z-n2xy)?a second preset value, where ranges of both the first preset value and the second preset value are 0.1˜0.

Abstract: An application of a compound having a structure represented by chemical formula 1, a pharmaceutically acceptable salt thereof, a solvate thereof, a solvate of the pharmaceutically acceptable salt thereof, or a crystal form thereof, in particular an application thereof in the preparation of an inhibitory drug targeting an ErbB2 mutant. The provided compound has inhibitory activity against the ErbB2 mutant, and can effectively inhibit proliferation of ErbB2 mutation tumor cells.

Abstract: Provided is an electric cable driving mechanism having a self-return function. The electric cable driving mechanism includes a housing assembly, an electric motor, a three-stage transmission mechanism and a multifunctional nut, the three-stage transmission mechanism includes a coil spring assembly, the electric motor is fixed to the housing assembly, and the three-stage transmission mechanism and the multifunctional nut are mounted in the housing assembly; and the multifunctional nut includes two cable mounting grooves and is in transmission connection to the electric motor by means of the three-stage transmission mechanism. According to the electric cable driving mechanism having a self-return function of the present disclosure, the three-stage transmission mechanism is used, and outputs a larger force compared with two-stage transmission; and a split multifunctional screw rod is easy to mount, such that mounting of a coil spring during assembly is prevented from scratching the screw rod.

Abstract: An organic light emitting device, a preparation method therefor, and a display apparatus are provided. The organic light emitting device includes an anode, a cathode, and a light emitting layer and an electron transport layer arranged between the anode and the cathode. The electron transport layer is arranged between the light emitting layer and the cathode. The electron transport layer includes a first host material and a second host material. A mixing ratio of the first host material to the second host material of one side of the electron transport layer close to the light emitting layer is different from a mixing ratio of the first host material to the second host material of one side of the electron transport layer away from the light emitting layer.

Abstract: A downhole assembly includes a disintegrable article, which contains a polymer matrix comprising a polymer having an oxygen content of about 2 wt % to about 30 wt %; an energetic material configured to generate heat upon activation to facilitate a chemical decomposition of the polymer; and at least one of a reinforcing fiber or a filler. The disintegrable article is disintegrated by disposing the downhole assembly in a downhole environment; performing a downhole operation; exposing the polymer in the polymer matrix to the generated heat to chemically decompose the polymer producing a decomposed product containing a small molecule in a supercritical state; and disintegrating the disintegrable article with the small molecule in the supercritical state.

Abstract: An information processing device according to one embodiment of the present disclosure comprises a processor. The processor is configured to generate a distributed component aimed at a three dimensional printing task. The distributed component is used for controlling, independent of the information processing device, execution of the three dimensional printing task after establishing a connection with a user equipment, and comprises decryption information of three dimensional model data used for the three dimensional printing task. The processor is further configured to control the arrangement of the distributed component to the user equipment.

Abstract: A disintegrable rubber seal includes a rubber composite, which contains a rubber matrix including a crosslinked rubber; and an energetic filler configured to generate heat upon activation to disintegrate the rubber matrix. The energetic filler contains a metal and a metal oxide. A weight ratio of the energetic filler to the rubber matrix is about 6:1 to about 1:1.

Abstract: A disintegrable rubber seal includes a rubber composite, which contains a rubber matrix including a crosslinked rubber; and an energetic filler configured to generate heat upon activation to disintegrate the rubber matrix. The energetic filler contains a metal and a metal oxide. A weight ratio of the energetic filler to the rubber matrix is about 6:1 to about 1:1.

Abstract: A downhole assembly includes a disintegrable article, which contains a polymer matrix comprising a polymer having an oxygen content of about 2 wt% to about 30 wt%; an energetic material configured to generate heat upon activation to facilitate a chemical decomposition of the polymer; and at least one of a reinforcing fiber or a filler. The disintegrable article is disintegrated by disposing the downhole assembly in a downhole environment; performing a downhole operation; exposing the polymer in the polymer matrix to the generated heat to chemically decompose the polymer producing a decomposed product containing a small molecule in a supercritical state; and disintegrating the disintegrable article with the small molecule in the supercritical state.

Abstract: An information processing device according to one embodiment of the present disclosure comprises a processor. The processor is configured to generate a distributed component aimed at a three dimensional printing task. The distributed component is used for controlling, independent of the information processing device, execution of the three dimensional printing task after establishing a connection with a user equipment, and comprises decryption information of three dimensional model data used for the three dimensional printing task. The processor is further configured to control the arrangement of the distributed component to the user equipment.

Abstract: A pressure compensator including a housing, an electroactive polymer (EAP) disposed in the housing and defining a volume therein, the volume being changeable upon application of an electric signal. A method for managing pressure in a tool including applying an electrical signal to the pressure compensator and changing a shape of the EAP to change the volume of the compensator whereby the pressure in the tool is altered. A borehole system including a borehole in a subsurface formation, a string in the borehole, a pressure compensator disposed within or as a part of the string.

Abstract: A trigger including a carrier, a shuttle movably disposed on the carrier, an energy member disposed between the carrier and the shuttle, a degrade-on-demand trip member disposed to maintain potential energy in the energy member until activated. A method for operating a downhole tool including sending a signal to the trip member of the trigger, degrading the trip member, converting potential energy stored in the energy member from potential energy to kinetic energy, and actuating the downhole tool with the shuttle. A wellbore system including a borehole in a subsurface formation, a string in the borehole, a trigger disposed within or as a part of the string.

Abstract: An 8-dihalomethyl berberine-type quaternary ammonium salt compound represented by general formula (I) or (II) and an application thereof in preparing a drug. The compound shows hydrophilicity and has antimicrobial, anti-inflammatory, anti-ulcerative colitis, and antitumor activities, while having no or low toxicity.

Abstract: A flow control device including a flow channel having a housing defining an inside surface, the inside surface having an irregular helical structure of constant orthogonal cross-sectional dimensions.

Abstract: A casing/liner string buoyancy arrangement including a casing/liner string, and a material defining a volume disposed within the string, the material excluding downhole fluids from the volume, the volume being of a lower specific gravity than the same downhole fluids. A method for managing buoyancy of a casing/liner string including configuring a casing/liner string, running the string, and selectively maintaining or degrading the material to adjust buoyancy of the string. A borehole system including a borehole in a subsurface formation, and an arrangement disposed in the borehole.