Abstract: A machine-learning based VOC detection and identification method and an apparatus and system for implementing same.

Abstract: The present application relates to a preparation method for recycling inorganic salt in printing and dyeing wastewater and comprises the following process steps: S1, performing impurity removal, softening, COD removal and decoloration on reverse osmosis (RO) membrane concentrated water to obtain pretreated wastewater; S2, performing two-stage electrodialysis on the wastewater obtained in step S1: returning fresh water obtained in a first-stage electrodialysis desalination chamber to a front end of the RO process, and taking saline water obtained in a concentration chamber as raw water of a second-stage electrodialysis desalination chamber and a second-stage electrodialysis concentration chamber; and returning the fresh water obtained by the second-stage electrodialysis desalination chamber to the first-stage electrodialysis concentration chamber; and S3, dealkalizing the concentrated saline water obtained in the step S2 and then adjusting the pH value to obtain concentrated saline water capable of being reuse

Abstract: A card holder for use inside an electronic device is provided. The card holder includes a holder body and a plurality of electrical connectors. The holder body is disposed with a card slot matching a nano SIM card. The card slot is configured to accommodate the nano SIM card or a memory card having a same appearance or shape as the nano SIM card. At least some of the plurality of electrical connectors are first electrical connectors whose positions match the positions of electrical contact points in the nano SIM card. The first electrical connector is configured to electrically connect to the nano SIM card or the memory card accommodated in the card slot. The plurality of electrical connectors are configured to electrically connect to the memory card.

Abstract: The present application relates to a preparation method for recycling inorganic salt in printing and dyeing wastewater and comprises the following process steps: S1, performing impurity removal, softening, COD removal and decoloration on reverse osmosis (RO) membrane concentrated water to obtain pretreated wastewater; S2, performing two-stage electrodialysis on the wastewater obtained in step S1: returning fresh water obtained in a first-stage electrodialysis desalination chamber to a front end of the RO process, and taking saline water obtained in a concentration chamber as raw water of a second-stage electrodialysis desalination chamber and a second-stage electrodialysis concentration chamber; and returning the fresh water obtained by the second-stage electrodialysis desalination chamber to the first-stage electrodialysis concentration chamber; and S3, dealkalizing the concentrated saline water obtained in the step S2 and then adjusting the pH value to obtain concentrated saline water capable of being reuse

Abstract: Example connector interfaces such as a Type-C interface and a mobile terminal are disclosed. One example connector interface includes a substrate, a first metal shell, a second metal shell, and an insert mold (I/M) component that are disposed on the substrate. The second metal shell is in a sealed connection to the first metal shell. One end of the I/M component is located in the second metal shell, and the other end of the I/M component penetrates through the second metal shell and is inserted into the first metal shell. The end of the I/M component that is located in the second metal shell is fixedly connected to the second metal shell, so that the I/M component is secured in an insertion direction.

Abstract: A detection system for use with a pipeline network having a fluid flowing therethrough. The fluid contains an ingredient that deposits on the interior walls of the pipeline network. The detection system is interposed within the pipeline network and comprises a first fluid path and a second fluid path. A material is distributed throughout the interior of the second fluid path that is capable of inducing and accelerating the deposition of the fluid ingredient on the walls of the second fluid path. A sensor exposed to the second fluid path monitors changes in the path indicative of deposit build-up. The sensor communicates with a control system. The control system directs a chemical injector to introduce chemical inhibitors into the pipeline network to inhibit ingredient deposition on the walls of the pipeline network.

Abstract: A card holder for use inside an electronic device is provided. The card holder includes a holder body and a plurality of electrical connectors. The holder body is disposed with a card slot matching a nano SIM card. The card slot is configured to accommodate the nano SIM card or a memory card having a same appearance or shape as the nano SIM card. At least some of the plurality of electrical connectors are first electrical connectors whose positions match the positions of electrical contact points in the nano SIM card. The first electrical connector is configured to electrically connect to the nano SIM card or the memory card accommodated in the card slot. The plurality of electrical connectors are configured to electrically connect to the memory card.

Abstract: An electronic device includes a printed circuit board and a card holder. The card holder is configured to hold a function card, and the printed circuit board is provided with a groove. The card holder is disposed in the groove. A bottom surface of the groove is provided with n metal solder pads and n printed wires. The n metal solder pads are electrically connected to the n printed wires in a one-to-one correspondence. N terminals in a one-to-one correspondence to the n metal solder pads are disposed on the card holder. Each terminal is provided with a first contact and a second contact. The first contact is connected to and in contact with one of the n metal solder pads. The second contact is configured to connect to and be in contact with a metal contact of the function card placed in the card holder.

Abstract: This application relates to a hardware interface, and in particular, to a USB Type-C interface used for an electronic device. In this application, a step is disposed on the USB Type-C interface to place a display screen. This shortens a distance from a front display screen of the electronic device to an edge of the electronic device, and increases a screen-to-body ratio.

Abstract: A system and method for preventing scale in a well. The system includes a conduit providing fluid communication between a first location and a second location and a sensor at the second location configured to measure scale deposition in the fluid and a value of a fluid parameter. A scale deposition at the first location is determined from the scale deposition at the second location and the fluid parameter at the second location. A scale inhibitor is injected at the first location based on the determined scale deposition at the first location.

Abstract: An electronic device includes a printed circuit board and a card holder. The card holder is configured to hold a function card, and the printed circuit board is provided with a groove. The card holder is disposed in the groove. A bottom surface of the groove is provided with n metal solder pads and n printed wires. The n metal solder pads are electrically connected to the n printed wires in a one-to-one correspondence. N terminals in a one-to-one correspondence to the n metal solder pads are disposed on the card holder. Each terminal is provided with a first contact and a second contact. The first contact is connected to and in contact with one of the n metal solder pads. The second contact is configured to connect to and be in contact with a metal contact of the function card placed in the card holder.

Abstract: The present invention provides a transmission and clutch device of an electric chassis and the electric chassis. The transmission and clutch device includes a transmission shaft, a first drive shaft, a first compression spring, a first gear, a second compression spring and a second drive shaft successively along an axial direction, the first drive shaft and the second drive shaft are fixed together, the transmission shaft is provided for connecting to a motor, and the first gear is fixed on a base in a rotatable manner, wherein the first drive shaft is connected with the transmission shaft in a relatively sliding manner and can rotate synchronously along with the drive shaft; and two end faces of the first gear are each opened with a keyway for separably cooperating with a protrusion of an end face of the first drive shaft or a protrusion of an end face of the second drive shaft.

Abstract: Example connector interfaces such as a Type-C interface and a mobile terminal are disclosed. One example connector interface includes a substrate, a first metal shell, a second metal shell, and an insert mold (I/M) component that are disposed on the substrate. The second metal shell is in a sealed connection to the first metal shell. One end of the I/M component is located in the second metal shell, and the other end of the I/M component penetrates through the second metal shell and is inserted into the first metal shell. The end of the I/M component that is located in the second metal shell is fixedly connected to the second metal shell, so that the I/M component is secured in an insertion direction.

Abstract: A sensor system including a body having an inlet, an outlet, and a fluid passage extending between the inlet and the outlet. A sensor is arranged at the fluid passage spaced from the outlet, and a temperature adjustment element is arranged in thermal communication with at least one of a portion of the fluid passage and the sensor.

Abstract: A system and method for preventing scale in a well. The system includes a conduit providing fluid communication between a first location and a second location and a sensor at the second location configured to measure scale deposition in the fluid and a value of a fluid parameter. A scale deposition at the first location is determined from the scale deposition at the second location and the fluid parameter at the second location. A scale inhibitor is injected at the first location based on the determined scale deposition at the first location.

Abstract: A detection system for use with a pipeline network having a fluid flowing therethrough. The fluid contains an ingredient that deposits on the interior walls of the pipeline network. The detection system is interposed within the pipeline network and comprises a first fluid path and a second fluid path. A material is distributed throughout the interior of the second fluid path that is capable of inducing and accelerating the deposition of the fluid ingredient on the walls of the second fluid path. A sensor exposed to the second fluid path monitors changes in the path indicative of deposit build-up. The sensor communicates with a control system. The control system directs a chemical injector to introduce chemical inhibitors into the pipeline network to inhibit ingredient deposition on the walls of the pipeline network.

Abstract: An electronic expansion valve includes an electromagnetic coil, a valve body provided with a valve port, and a valve needle. The valve needle includes a main body section and a first conical surface portion arranged adjacent to the main body section. The valve port includes a straight section portion having equal diameters. When the electromagnetic coil applies a zero pulse, the straight section portion is not in contact with the valve needle, and an intersecting surface of a plane, where a top end of the straight section portion is located, and the valve needle is on the first conical surface portion. With the electronic expansion valve, flow can be precisely adjusted at a low-pulse stage, and during assembly, a position of the 0 pulse can be directly obtained by adjusting relative positions of the valve needle and the valve port and by using a flow meter.

Abstract: This application relates to a hardware interface, and in particular, to a USB Type-C interface used for an electronic device. In this application, a step is disposed on the USB Type-C interface to place a display screen. This shortens a distance from a front display screen of the electronic device to an edge of the electronic device, and increases a screen-to-body ratio.

Abstract: The present invention provides a transmission and clutch device of an electric chassis and the electric chassis. The transmission and clutch device includes a transmission shaft, a first drive shaft, a first compression spring, a first gear, a second compression spring and a second drive shaft successively along an axial direction, the first drive shaft and the second drive shaft are fixed together, the transmission shaft is provided for connecting to a motor, and the first gear is fixed on a base in a rotatable manner, wherein the first drive shaft is connected with the transmission shaft in a relatively sliding manner and can rotate synchronously along with the drive shaft; and two end faces of the first gear are each opened with a keyway for separably cooperating with a protrusion of an end face of the first drive shaft or a protrusion of an end face of the second drive shaft.

Abstract: An electronic expansion valve includes an electromagnetic coil, a valve body provided with a valve port, and a valve needle. The valve needle includes a main body section and a first conical surface portion arranged adjacent to the main body section. The valve port includes a straight section portion having equal diameters. When the electromagnetic coil applies a zero pulse, the straight section portion is not in contact with the valve needle, and an intersecting surface of a plane, where a top end of the straight section portion is located, and the valve needle is on the first conical surface portion. With the electronic expansion valve, flow can be precisely adjusted at a low-pulse stage, and during assembly, a position of the 0 pulse can be directly obtained by adjusting relative positions of the valve needle and the valve port and by using a flow meter.