Abstract: A bifocal lens module of vehicle headlight for vehicle includes a low beam condenser, a high beam condenser, a partition, a light guide member, and an optical lens. The partition has a curvy end face and an opening. The opening of the partition faces toward the optical lens. Light emitted by at least one low beam light source is converged through the low beam condenser, then transmitted from the upper position of the partition to the bottom of the partition, and eventually sent to the lower part of the optical lens. Light emitted by at least one high beam light source is converged by the high beam to condenser, transmitted from the bottom of the partition through the light guide channel to the top of the partition, and then sent to the upper part of the optical lens.

Abstract: Embodiments of the present disclosure disclose a method and an apparatus for restoring a network device to factory defaults, and a network device, and relate to the field of configuration management technologies. A NETCONF server determines that the network device needs to be restored to the factory defaults; the NETCONF server replaces data in a startup configuration datastore and a running configuration datastore in the NETCONF server with factory defaults data in a factory defaults datastore, where the factory defaults datastore is dedicated to storing the factory defaults data of the network device. The NETCONF server delivers the data in the running configuration datastore after replacement to a plurality of service modules. Then, the plurality of service modules performs a validation operation based on the data delivered by the NETCONF server.

Abstract: The disclosure relates to a semimetal compound of Pt and a method for making the same. The semimetal compound is a single crystal material of PtSe2. The method comprises: providing a PtSe2 polycrystalline material; placing the PtSe2 polycrystalline material in a reacting chamber; placing chemical transport medium in the reacting chamber; evacuating the reacting chamber to be vacuum less than 10 Pa; placing the reacting chamber at a temperature gradient, wherein the reacting chamber has a first end at a temperature of 1200 degrees Celsius to 1000 degrees Celsius and a second end opposite to the first end and at a temperature of 1000 degrees Celsius to 900 degrees Celsius; and keeping the reacting chamber in the temperature gradient for 10 days to 30 days.

Abstract: There are disclosed embodiments of devices and methods for imaging the inside of a body part, particularly a blood vessel. In particular embodiments, a catheter has a tip chamber, within which is an ultrasound transducer mounted on a pivot mechanism, a motor for turning the transducer, and an implement for pivoting the transducer. Examples of such an implement are a linear motor, a shaft or filament, and the pivot mechanism may be biased to return to a base position when the implement is not pivoting the transducer. In other embodiments, a mirror reflecting ultrasound signals from the transducer may be rotated and/or pivoted, using similar mechanisms.

Abstract: Provided is a method for manufacturing an electromagnetic shielding film, which includes: step 1), coating a photoresist on a conductive substrate, and then forming a pattern structure on the conductive substrate through a photolithography process; step 2), growing a metal layer in the pattern structure through a selective electrodeposition process to form a metal pattern structure; and step 3), embedding the metal pattern structure in a flexible base material through an imprinting process to form an electromagnetic shielding film. A method for manufacturing an electromagnetic shielding window is also provided.

Abstract: Disclosed are an optical module unlocking device and an optical module. For the optical module unlocking device, a boss is arranged on a metal front end of a pull ring. The boss abuts against the skewed slot of an upper cover. The metal front end located in the upper cover can slide relatively along the limiting post of the upper cover and at least one boss is driven to slide into the skewed slot of the upper cover and then hide into the bottom of the skewed slot or abut against a bevel edge of the at least one skewed slot and then bulge. After the at least one boss abuts against the bevel edge of the at least one skewed slot and then bulges, a shielding cage spring strip which is about to be cooperated with the boss is opened by being pushed upwards, and the optical module can be unlocked. The reliability of the optical module unlocking device is high and the unlocking motion of the optical module is simple.

Abstract: A method for regulating a phase transformation of a hydrogen-containing transition metal oxide comprises steps of: providing a hydrogen-containing transition metal oxide having a structural formula of ABOxHy, wherein the hydrogen-containing transition metal oxide is in form of a first phase, A is one or more of alkaline earth metal elements and rare-earth metal elements, B is one or more of transition metal elements, x is a numeric value in a range of 1 to 3, and y is a numeric value in a range of 0 to 2.5; soaking the hydrogen-containing transition metal oxide with a first ionic liquid capable of providing hydrogen ions and oxygen ions; and applying a gating voltage to the hydrogen-containing transition metal oxide with the first ionic liquid as a gate to regulate the phase transformation of the hydrogen-containing transition metal oxide.

Abstract: The disclosure relates to a method for making semimetal compound of Pt. The semimetal compound is a single crystal material of PtSe2. The method comprises: placing pure Pt and pure Se in a reacting chamber as reacting materials; evacuating the reacting chamber to be vacuum less than 10 Pa; heating the reacting chamber to a first temperature of 600 degrees Celsius to 800 degrees Celsius and keeping for 24 hours to 100 hours; cooling the reacting chamber to a second temperature of 400 degrees Celsius to 500 degrees Celsius at a cooling rate of 1 degrees Celsius per hour to 10 degrees Celsius per hour and keeping for 24 hours to 100 hours to obtain a crystal material of PtSe2; and separating the excessive reacting materials from the crystal material of PtSe2.

Abstract: A gradient coil assembly of a magnetic resonance imaging system includes at least one gradient coil, a cooling arrangement for cooling the gradient coil, and an RF shield. The cooling arrangement includes at least one cooling tube that is configured to transport a cooling fluid and which is disposed on and in thermal contact with the gradient coil, wherein the assembly further comprises a thermal connector arrangement with at least one of a first thermal connector disposed between the RF shield and the at least one cooling tube, which provides a radially extending connection between the RF shield and the at least one cooling tube.

Abstract: The present disclosure relates to an exponential model based uncooled infrared focal plane array readout circuit, including: a first microbolometer unit and a second microbolometer unit, for obtaining a detection signal and a reference signal; a conversion unit, connected with the first and second microbolometer units, and configured for converting the detection signal and reference signal to obtain a linear detection signal and linear reference signal; a subtraction unit, connected with the conversion unit, and configured for calculating a difference between the detection signal and the reference ratio signal to obtain a difference signal; and an integration unit, connected to the subtraction unit, and configured for integrating the difference signal to obtain an electrical signal for characterizing the infrared light signal of the to-be-detected object.

Abstract: An efficient long-service-life blowing method include the steps of introducing vanadium extraction converter flue gas and decarburization converter flue gas into an oxygen combustor; obtaining first-purity CO2—N2 mixed gas through the vanadium extraction converter flue gas; obtaining second-purity CO2—N2 mixed gas through the decarburization converter flue gas; obtaining O2—CO2—N2 mixed gas through the decarburization converter flue gas; obtaining first-purity CO2 gas through the second-purity CO2—N2 mixed gas; and using the first-purity CO2—N2 mixed gas for bottom blowing of the vanadium extraction converter, using the second-purity CO2—N2 mixed gas as a carrier gas for blowing iron ore powder into the vanadium extraction converter, and using the O2—CO2—N2 mixed gas and the first-purity CO2 gas as a carrier gas for bottom blowing of the decarburization converter and bottom injecting of lime powder into the decarburization converter.

Abstract: A gradient coil assembly (62) for use in a Magnetic Resonance Imaging (MRI) system includes primary coils (68), shield coils (72) and a supporting structure (10) arranged between the primary coils (68) and the shield coils (72). The supporting structure (10) includes at least a supporting element (12) including a first end face (14) and at least a first recess (24) with an opening (26) in the first end face (14). The first recess (24) extends in a longitudinal direction (18) of the supporting element (12) forming a tray for receiving a passive shim bar.

Abstract: Among other things, there are disclosed embodiments of devices used for minimally-invasive treatments, such as treatment of mitral valves. In a system for placing an annuloplasty belt around the heart, embodiments for tensioning a suture associated with the belt are provided, as are embodiments of a suture lock for holding the suture with the applied tension. A delivery device that permits placement and tensioning of such a belt and activation of the suture lock in one procedure is also disclosed. Methods for making and using these features are also disclosed.

Abstract: A display method and an electronic device are provided to improve operation efficiency and to reduce probability of blocking a user's observation of an object when displaying a function menu. The display method includes: acquiring object information within a viewing range of a user; based on the object information, determining that a first real object is within the viewing range of the user; outputting an image of the function menu of the electronic device to make the user perceive the function menu being displayed on the first real object; and if the it is determined that the first real object leaves the viewing range of the user, terminating outputting the image of the function menu.

Abstract: The present disclosure relates to an exponential model based uncooled infrared focal plane array readout circuit, including: a first microbolometer unit and a second microbolometer unit, for obtaining a detection signal and a reference signal; a conversion unit, connected with the first and second microbolometer units, and configured for converting the detection signal and reference signal to obtain a linear detection signal and linear reference signal; a subtraction unit, connected with the conversion unit, and configured for calculating a difference between the detection signal and the reference ratio signal to obtain a difference signal; and an integration unit, connected to the subtraction unit, and configured for integrating the difference signal to obtain an electrical signal for characterizing the infrared light signal of the to-be-detected object.

Abstract: An efficient long-service-life blowing method include the steps of introducing vanadium extraction converter flue gas and decarburization converter flue gas into an oxygen combustor; obtaining first-purity CO2—N2 mixed gas through the vanadium extraction converter flue gas; obtaining second-purity CO2—N2 mixed gas through the decarburization converter flue gas; obtaining O2—CO2—N2 mixed gas through the decarburization converter flue gas; obtaining first-purity CO2 gas through the second-purity CO2—N2 mixed gas; and using the first-purity CO2—N2 mixed gas for bottom blowing of the vanadium extraction converter, using the second-purity CO2—N2 mixed gas as a carrier gas for blowing iron ore powder into the vanadium extraction converter, and using the O2—CO2—N2 mixed gas and the first-purity CO2 gas as a carrier gas for bottom blowing of the decarburization converter and bottom injecting of lime powder into the decarburization converter.

Abstract: There are disclosed embodiments of devices and methods for imaging the inside of a body part, particularly a blood vessel. In particular embodiments, a catheter has a tip chamber, within which is an ultrasound transducer mounted on a pivot mechanism, a motor for turning the transducer, and an implement for pivoting the transducer. Examples of such an implement are a linear motor, a shaft or filament, and the pivot mechanism may be biased to return to a base position when the implement is not pivoting the transducer. In other embodiments, a mirror reflecting ultrasound signals from the transducer may be rotated and/or pivoted, using similar mechanisms.

Abstract: Disclosed are an optical module unlocking device and an optical module. For the optical module unlocking device, a boss is arranged on a metal front end of a pull ring. The boss abuts against the skewed slot of an upper cover. The metal front end located in the upper cover can slide relatively along the limiting post of the upper cover and at least one boss is driven to slide into the skewed slot of the upper cover and then hide into the bottom of the skewed slot or abut against a bevel edge of the at least one skewed slot and then bulge. After the at least one boss abuts against the bevel edge of the at least one skewed slot and then bulges, a shielding cage spring strip which is about to be cooperated with the boss is opened by being pushed upwards, and the optical module can be unlocked. The reliability of the optical module unlocking device is high and the unlocking motion of the optical module is simple.

Abstract: The present invention provides a process for preparing a cellulose solution. NMMO with a relatively low concentration and non-activated pulp are continuously mixed online, the mixed premix is dewatered in evaporation dewatering equipment until an NMMO concentration suitable for swelling is achieved, then, sufficient swelling is carried out under this condition, and the uniformly-mixed and sufficiently swelled pre-swelling solution is subjected to depressurized evaporation dewatering and dissolving by thin-film-evaporation equipment thereby obtaining a high-concentration, uniformly-dissolved and excellently-uniformity cellulose solution. The present invention further provides continuous preparation equipment for the process for preparing a cellulose solution.