Abstract: A method and system for detecting pesticide residue in agricultural products. The system includes a chromatographic and mass-spectrometric system and a computer. The system inspects first and second sample solutions prepared from two identical extracts of an agricultural product. The first sample solution includes no additives while the second sample is added with a pesticide standard which is intended to be detected by the system for comparison. The computer compares the mass chromatograms of the first and second sample solutions, and calculate an increased integral area by which the peak of the second sample solution in the second mass chromatogram exceeds the peak of the first sample solution in the first mass chromatogram at the same retention time. As such, the concentration of pesticide residue in the sample can be determined by a ratio between the increased integral area and the concentration of the pesticide standard.

Abstract: The present invention provides a quick extraction kit adapted to a procedure of detecting pesticide residues in agricultural products and a method of obtaining a primary test liquid from an agricultural sample by the quick extraction kit. The quick extraction kit comprises a pipe, a first powder mixture layer and a second powder mixture layer. The method of taking primary test liquid is performed as follows. First, obtaining fragments of the agricultural sample. Second, adding an extraction solvent into the fragments of the agricultural sample to obtain a sample solution. Third, adding the sample solution into the pipe. Finally, driving the sample solution to export from the pipe to become the primary test liquid. The quick extraction kit and the method solve the problem of being unable to quickly obtain the result of detecting pesticide residues.

Abstract: An exemplary method for making a light blocking plate includes the steps of providing a flat plate-like light pervious member; forming a plurality of spaced ceramic power layers on the light pervious member; forming a light blocking layer over the light pervious member and side faces of the ceramic power layers; forming an electromagnetic shielding layer over the light blocking layer; removing top portions of the ceramic power layers with remaining portions of the ceramic power layers thus exposed; and removing the remaining portions of the ceramic power layers.

Abstract: A polysaccharide based aerogel comprising a network of polysaccharide fibers with pores therebetween, wherein the sizes of the pores are in the micrometer range.

Abstract: The present invention provides a quick extraction kit adapted to a procedure of detecting pesticide residues in agricultural products and a method of obtaining a primary test liquid from an agricultural sample by the quick extraction kit. The quick extraction kit comprises a pipe, a first powder mixture layer and a second powder mixture layer. The method of taking primary test liquid is performed as follows. First, obtaining fragments of the agricultural sample. Second, adding an extraction solvent into the fragments of the agricultural sample to obtain a sample solution. Third, adding the sample solution into the pipe. Finally, driving the sample solution to export from the pipe to become the primary test liquid. The quick extraction kit and the method solve the problem of being unable to quickly obtain the result of detecting pesticide residues.

Abstract: A motor fault detecting method and a motor fault detecting system are provided. An electrical frequency and sensing current data of a brushless motor is obtained. An empirical mode decomposition (EMD) is performed on the sensing current data to obtain intrinsic mode functions (IMF). A feature IMF is obtained from the IMFs, in which the feature IMF is feature current data, and a frequency of the feature current data complies with the electrical frequency of the brushless motor. An electrical impedance is calculated according to an input voltage of the brushless motor and the feature current data. The electrical impedance is compared with a reference electrical impedance to determine if the brushless motor is abnormal. The reference electrical impedance is calculated according to training sensing current data of a training brushless motor which is in a healthy state. Accordingly, whether the brushless motor is abnormal is effectively determined.

Abstract: A coating auxiliary device, for coating hollow workpieces, includes a loading tray, masking stoppers, and an ejecting plate. The loading tray includes a loading surface, a matching surface opposite to the loading surface, and engaging portions extending up from the loading surface. Each workpiece is engaged with an engaging portion. The loading device defines guiding holes. Each guiding hole passes through an engaging portion and the matching surface and is in communication with the respective workpiece. Each masking stopper is configured to be inserted into a respective workpiece to mask an interior of the respective workpiece. The ejecting plate includes an assembling surface and ejecting rods extending up from the assembling surface. Each ejecting rod is configured to be guided into a respective guiding hole from the matching surface to eject out a respective masking stopper.

Abstract: An ejecting device includes a supporting plate and a balloon member. The supporting plate includes a top surface. The balloon member is fixed on the top surface and includes a main portion and a number of ejecting portions. The main portion is configured for receiving fluid. The ejecting portions are positioned on the main portion. When the main portion is full filled with the fluid, each ejecting portion protrudes from the main portion.

Abstract: An optical element includes a transparent substrate and an infrared absorbing layer on an object-side surface of the transparent substrate. The infrared absorbing layer is a thermo sensitive ink printed or deposited on the transparent substrate. The thermo sensitive ink is cured to blue color.

Abstract: A mask for use in an optical evaporation coating includes a main shaft, a number of horizontal rods, a number of pairs of shielding sheets, and a number of adjustment members. The horizontal rods are vertically fixed on the main shaft, and each horizontal has a scale thereon. A pair of shielding sheets is connected to the two ends of each horizontal rod, and can slide along the horizontal rod. The shape of the mask can be accurately adjusted using the adjustment members to ensure masks covered with aluminum foil by different workers have the same shape.

Abstract: A plasma film deposition device includes a film deposition chamber, a plasma generator within the deposition chamber, a plurality of gas carrier boards adjustably mounted to the plasma generator, a gas providing system, and a rotating support bracket. The gas providing system provides working gas and protective gas. The rotating support bracket is assembled within the film deposition chamber, and is aligned with the plasma generator, for holding workpieces in certain orientations. The plasma generator ionizes the working gas into high-temperature plasma, and sprays the high-temperature plasma toward the rotating support bracket to form plasma films on the workpieces. A plasma jet area is defined between the rotating support bracket and the plasma generator, the gas carrier boards eject the protective gas toward the plasma jet area thereby adjusting the shape of the plasma jet area.

Abstract: An automatic wax removing device includes a base, a heating plate, a cooling plate, a first actuator, a second actuator, and an operation plate. The base includes a base plate and a framework. The heating plate is arranged on the base plate. The cooling plate is arranged on the base plate and separated from the heating plate. The first actuator includes a sliding rail and a elongated sliding member on the sliding rail. The sliding rail is fixed on the frame and parallel with the heating plate. The second actuator includes a main body and a rotation shaft arranged on the main body. The main body is slideable along the length of the sliding member. One end of the rotation shaft is connected to the main body. The operation plate is fixed to the other end of the rotation shaft.

Abstract: A glass cutting machine includes a worktable, a cutting mechanism positioned above the worktable, and a plurality of grasping assemblies rotatably positioned on the worktable for transporting glass plates. Each grasping assembly includes a support shaft rotatably received in the worktable, a positioning bar fixed to an end of the support shaft, and one or more grasping members positioned on the positioning bar. The worktable includes several rotating members, and each rotating member includes a support disc that can be rotated to drive the glass plate to rotate.

Abstract: When a bill is inserted into the bill acceptor, sensor components sense the insertion of bill, bill-pressing roller set of bill transmission mechanism is driven to press bill, bill-transfer roller set is driven to transfer bill the bill-pressing roller set is released from the bill, and step motors of alignment correction unit are controlled to move correction devices toward each other to align the bill with the center line of bill passage subject to a predetermined number of steps. If the resistance force from bill is larger than the thrust force produced during rotation of step motors, utilize the step loss status of step motors and enable transmission devices to move correction devices away from bill when the rotation of step motors reaches the predetermined number of steps, and then enable bill-pressing roller set to press bill again and then enable bill-transfer roller set to transfer bill.

Abstract: A cutting device includes a support base, a first slide module, a second slide module slidably connected to the first slide module, and a cutting module. The support base includes a support surface and a slide portion on the support surface. The first slide module is slidably positioned on the slide portion. The sliding direction of the second slide module is perpendicular to the sliding direction of the first slide module. The cutting module includes a fixed frame fixed on the second slide module, a driving device fixed on the fixed frame, and a cutter connected to the driving device. The driving device drives the cutter to rotate around a central axis of the cutter and move up and down along the central axis. The central axis is perpendicular to the support surface. The cutter includes a hollow cylindrical blade. An end surface of the blade faces the support surface.

Abstract: A guiding assembly is used in a coating device. The coating device includes a target and an umbrella stand. The guiding assembly is located between the target and the umbrella stand, and includes a motor, a transmission unit driven by the motor, and a plurality of guiding boards driven by the transmission unit. The guiding boards are rotatable to control a direction of motion of particles stimulated from the target.

Abstract: When a bill is inserted into the bill acceptor, sensor components sense the insertion of bill, bill-pressing roller set of bill transmission mechanism is driven to press bill, bill-transfer roller set is driven to transfer bill the bill-pressing roller set is released from the bill, and step motors of alignment correction unit are controlled to move correction devices toward each other to align the bill with the center line of bill passage subject to a predetermined number of steps. If the resistance force from bill is larger than the thrust force produced during rotation of step motors, utilize the step loss status of step motors and enable transmission devices to move correction devices away from bill when the rotation of step motors reaches the predetermined number of steps, and then enable bill-pressing roller set to press bill again and then enable bill-transfer roller set to transfer bill.

Abstract: A lens module includes an infrared absorbing filter. The infrared absorbing filter includes an electrochromic substrate. The electrochromic substrate changes from colorlessness to blue when a preset voltage is applied on the electrochromic substrate. The electrochromic substrate is configured for absorbing the infrared constituent of incoming light rays when the color is changed to blue.

Abstract: A lens includes a substrate and an infrared-cut (IR-cut) filtering film. The substrate is made of sapphire, is configured for converging or diffusing light rays and includes an object-side surface and an image-side surface opposite to the object-side surface. The IR-cut filtering film increases the reflectivity of the substrate in relation to infrared light, and is coated on the image-side surface of the substrate.

Abstract: A brush includes a substrate, a number of brush bristles, a storage bag, and a pushing element. The substrate includes a main body and a handle extending from the main body. The main body has a first loading surface supporting the brush bristles. The first loading surface defines a through hole. The main body defines a first receiving groove communicating with the though hole. The handle has a second loading surface, and defines a second receiving groove communicating with the first receiving groove. The second receiving groove passes through a portion of the second loading surface adjacent to the first receiving groove. The storage bag receives paste, and is received in the second receiving groove and partially extends into the first receiving groove to communicate with the through hole. The pushing element squeezes the storage bag to make the paste flow into gaps between the brush bristles.