Abstract: Disclosed are an optical instrument, an imaging system, and an imaging method for a miniature multi-photon microscope, relating to the optical configuration field. The optical instrument is configured to have a fluorescence excitation optical path and a fluorescence collection optical path. The optical instrument includes a condenser, and the condenser includes a first lens group and a second lens group separately disposed. The first lens group is located in the fluorescence collection optical path, the second lens group is located in the fluorescence excitation optical path and the fluorescence collection optical path. A relative distance the second lens group and a miniature objective is less than a first preset distance threshold. A collection efficiency of scattered fluorescence of the miniature multi-photon microscope may be improved, thereby improving an imaging signal-to-noise ratio and an imaging depth when a sample to be test with a scattering characteristic is observed.

Abstract: A truss system may include a plurality of beams. Each beam of the plurality of beams may have various cross-sectional sizes in a same plane. Additionally, the plurality of beams may have a geometric arrangement such that a structural weight at required strength level may be reduced to achieve optimal design.

Abstract: A device and method for evaluating long-term operation of a transformer oil pump. An inlet of an oil pump is connected to an outlet of an oil tank through an oil pipe, and an outlet of the oil pump is connected to an inlet of the oil tank through an oil pipe. A pressure gauge is provided on the oil pipe to the inlet and the outlet of the oil pump, respectively. An ultra-high-frequency (UHF) sensor is provided on an inner wall of an oil pipe close to the oil pump. A pressure difference between the oil pipes to the inlet and to the outlet of the oil pump is monitored. A three-phase unbalanced current of a stator winding is monitored. The vibration of the oil pump is monitored. The rotor-to-stator rub is monitored. Based on the above inspection, a long-term health status of the oil pump is determined.

Abstract: A manufacturing method for a moisture permeable device suitable for use in a refrigerator where the device includes a corresponding first surface (110) and second surface (111); at least parts of the first surface (110) and the second surface (111) of the moisture permeable device define a hollow cavity (301); through-holes are provided at regions of the first surface (110) and the second surface (111) of the moisture permeable device defining the cavity (301); and regenerated cellulose is accommodated in the cavity (301) includes the steps of pouring a regenerated cellulose slurry with a tackifier added thereto into the cavity (301) to form a moisture permeable film, thus allowing omission of an assembling procedure and a non-woven support.

Abstract: A truss system may include a plurality of beams. Each beam of the plurality of beams may have various cross-sectional sizes in a same plane. Additionally, the plurality of beams may have a geometric arrangement such that a structural weight at required strength level may be reduced to achieve optimal design.

Abstract: Provided is a method for manufacturing a semiconductor wafer and a semiconductor wafer. The method includes: disposing a sacrificial layer on a first surface and a second surface of a patterned substrate, the patterned substrate comprising the first surface and the second surface having different normal directions; exposing the first surface by removing the first portion of the sacrificial layer disposed on the first surface; growing an original nitride buffer layer on the first surface and the second portion of the sacrificial layer; partially lifting off the second portion of the sacrificial layer disposed on the second surface such that at least one sub-portion of the second portion of the sacrificial layer remains on the second surface of the patterned substrate; and growing an epitaxial layer on the original nitride buffer layer, where a crystal surface of the epitaxial layer grows along a normal direction of the patterned substrate.

Abstract: A device and method for evaluating long-term operation of a transformer oil pump. An inlet of an oil pump is connected to an outlet of an oil tank through an oil pipe, and an outlet of the oil pump is connected to an inlet of the oil tank through an oil pipe. A pressure gauge is provided on the oil pipe to the inlet and the outlet of the oil pump, respectively. An ultra-high-frequency (UHF) sensor is provided on an inner wall of an oil pipe close to the oil pump. A pressure difference between the oil pipes to the inlet and to the outlet of the oil pump is monitored. A three-phase unbalanced current of a stator winding is monitored. The vibration of the oil pump is monitored. The rotor-to-stator rub is monitored. Based on the above inspection, a long-term health status of the oil pump is determined.

Abstract: An iron-based amorphous electrode material for industrial wastewater treatment, wherein the material is amorphous alloy used as an electrode for electrochemical degradation of industrial wastewater, and the atom percentage of iron element in the alloy being 40-84%, wherein a method for treating dye wastewater by using the iron-based amorphous electrode material and a use of the iron-based amorphous electrode material in the electrochemical degradation of industrial wastewater are also disclosed.

Abstract: A manufacturing method for a moisture permeable device suitable for use in a refrigerator where the device includes a corresponding first surface (110) and second surface (111); at least parts of the first surface (110) and the second surface (111) of the moisture permeable device define a hollow cavity (301); through-holes are provided at regions of the first surface (110) and the second surface (111) of the moisture permeable device defining the cavity (301); and regenerated cellulose is accommodated in the cavity (301) includes the steps of pouring a regenerated cellulose slurry with a tackifier added thereto into the cavity (301) to form a moisture permeable film, thus allowing omission of an assembling procedure and a non-woven support.

Abstract: A moisture permeable device and refrigerator having the same; the moisture permeable device includes a corresponding first surface (110) and second surface (111); at least parts of the first surface (110) and the second surface (111) of the moisture permeable device define a hollow cavity (301); through-holes are provided at regions of the first surface (110) and the second surface (111) of the moisture permeable device defining the cavity (301); and regenerated cellulose is accommodated in the cavity (301). A manufacturing method of the moisture permeable device comprises pouring a regenerated cellulose slurry with a tackifier added thereto into the cavity (301) to form a moisture permeable film, thus allowing omission of an assembling procedure and a non-woven support.

Abstract: A continuous precision forming device and process for an amorphous alloy is provided. By means of the device, when a melting platform with an alloy melt is rotated from the melting position to a position just below the forming mould (9), temperature of the alloy melt can be in the range of the overcooled liquid zone temperature of the alloy melt, and then a loading rod (7) drives the forming mould (9) to proceed with pressing forming. According to the process, press-forming is carried out in a certain temperature interval in the amorphous alloy melt solidification process, and the heating, cooling, solidification and forming in the forming process are coordinated, such that continuous forming of the amorphous alloy is achieved.

Abstract: Provided is a method for manufacturing a semiconductor wafer and a semiconductor wafer. The method includes: disposing a sacrificial layer on a first surface and a second surface of a patterned substrate, the patterned substrate comprising the first surface and the second surface having different normal directions; exposing the first surface by removing the first portion of the sacrificial layer disposed on the first surface; growing an original nitride buffer layer on the first surface and the second portion of the sacrificial layer; partially lifting off the second portion of the sacrificial layer disposed on the second surface such that at least one sub-portion of the second portion of the sacrificial layer remains on the second surface of the patterned substrate; and growing an epitaxial layer on the original nitride buffer layer, where a crystal surface of the epitaxial layer grows along a normal direction of the patterned substrate.

Abstract: According to at least some embodiments of the present disclosure, a method of manufacturing semiconductor wafers comprises: selectively growing a nitride buffer layer on a first surface of a patterned substrate, the patterned substrate including at least the first surface and a second surface; and growing an epitaxial layer on the nitride buffer layer, wherein a crystal surface of the epitaxial layer grows along a normal direction of the patterned substrate. The epitaxial layer does not include multiple crystal surfaces having different crystal growth directions that cause a stress at a junction interface where the crystal surfaces having the different crystal growth directions meet.

Abstract: A continuous precision forming device and process for an amorphous alloy or a composite material thereof is provided. By means of the device, when a melting platform with an alloy melt is rotated from the melting position to a position just below the forming mould (9), temperature of the alloy melt can be in the range of the overcooled liquid zone temperature of the alloy melt, and then a loading rod (7) drives the forming mould (9) to proceed with pressing forming. According to the process, press-forming is carried out in a certain temperature interval in the amorphous alloy melt solidification process, and the heating, cooling, solidification and forming in the forming process are coordinated, such that continuous forming of the amorphous alloy is achieved.

Abstract: Disclosed is a freshness preservation unit for a storage box of a refrigerator. At least one through hole is provided on at least one box wall of the storage box. The freshness preservation unit includes a housing wherein an accommodating space is formed. A freshness preservation film is provided in the accommodating space. The housing is provided with a fixing piece which is cooperatable with the box wall of the storage box such that the freshness preservation unit is assembled in the through hole of the storage box in a detachable manner. The freshness preservation unit realizes the functions of freshness preservation and storage for fruits and vegetables, and is assembled in the through hole of the storage box in a detachable manner, convenient to assembly and disassembly, convenient to cleaning and replacement, and low in the maintenance cost.

Abstract: The present invention provides a femtosecond pulse laser modulator and a miniature two-photon microscopic imaging device. The femtosecond pulse laser modulator includes a negative dispersion light path and a positive dispersion light path, wherein the negative dispersion light path includes a laser input fiber, which is configured to transmit laser compensated for through prechirp; the positive dispersion light path is located between a femtosecond pulse laser and the negative dispersion light path, and is configured to compensate for, through prechirp, negative dispersion of the laser produced in the laser input fiber. The femtosecond laser modulator provided in the present invention provides distortion-free transmission for the femtosecond pulse laser with a center wavelength in 920 nm, and effectively excites commonly used biological indicators.

Abstract: Provided is a multifunctional chamber and a refrigerator. The chamber comprises a door body, an inner container enclosed by a plurality of plate bodies, at least one opening provided in at least one of the plurality of plate bodies, a moisture preserving module disposed at the opening and used for regulating and controlling the humidity of the chamber, an upper cover movably disposed on the moisture preserving module, and at least one air port provided in at least one of the plurality of plate bodies and used for discharging moisture from the chamber. When the chamber is at a high-humidity mode, the upper cover moves at the moisture preserving module to expose the moisture preserving module; and when the chamber is at drying mode, the upper cover completely covers the moisture preserving module.

Abstract: An iron-based amorphous electrode material for industrial wastewater treatment, wherein the material is amorphous alloy used as an electrode for electrochemical degradation of industrial wastewater, and the atom percentage of iron element in the alloy being 40-84%, wherein a method for treating dye wastewater by using the iron-based amorphous electrode material and a use of the iron-based amorphous electrode material in the electrochemical degradation of industrial wastewater are also disclosed.

Abstract: A casting and molding equipment for producing an amorphous alloy structural unit, including an injection system, an alloy melting system, a material feeding system, a mold system, a vacuum system, and a protective gas supply system. The injection system includes an injection tube, an injection mechanism, and a plunger rod; the plunger rod is adapted to move along an inner wall of the injection tube, and the injection mechanism is configured to control a moving direction and moving speed of the plunger rod. The alloy melting system includes a melting chamber and a heating unit; the heating unit is configured to melt an alloy material in the melting chamber; the heating unit includes an induction coil or resistance wire; the melting chamber is disposed in the injection tube, and the heating unit is disposed out of the injection tube.

Abstract: According to at least some embodiments of the present disclosure, a method of manufacturing semiconductor wafers comprises: selectively growing a nitride buffer layer on a first surface of a patterned substrate, the patterned substrate including at least the first surface and a second surface; and growing an epitaxial layer on the nitride buffer layer, wherein a crystal surface of the epitaxial layer grows along a normal direction of the patterned substrate. The epitaxial layer does not include multiple crystal surfaces having different crystal growth directions that cause a stress at a junction interface where the crystal surfaces having the different crystal growth directions meet.