MARINE BACTERIA COLD-ADAPTED PROTEASE AND ENCODED GENE AND APPLICATION THEREOF

Disclosed are a marine bacteria cold-adapted protease and an encoded gene and an application thereof. An amino acid sequence of the cold-adapted protease in the present invention is shown in SEQ ID NO.2. A gene of the cold-adapted protease is encoded, and a nucleotide sequence thereof is shown in SEQ ID NO.1. The present invention provides a new cold-adapted protease gene hspa1 for encoding a gene of a cold-adapted protease HSPA2 and a cold-adapted protease HSPA2 encoded by the same. The cold-adapted protease HSPA2 has excellent cold adapted performance and has wide use in protein hydrolysis.

贴标仪

LABEL PEELING MACHINE PROVIDED WITH ENCODER

Provided is a label peeling machine provided with an encoder, comprising a housing (1), a motor (2), a discharge assembly (4) for placing label roll paper, a collection assembly (12) for recovering backing paper, a separation assembly (13) for separating the backing paper of the label paper from labels, and an adjustment assembly (16) for clamping the label paper, wherein, a circuit device is provided in the housing (1), the circuit device comprises an encoder connected to the motor (2), the encoder controls the rotation of the motor (2), the encoder accurately calculates the rotation distance of the motor (2) to ensure that the rotation distance of the motor (2) is consistent with the width of the label paper. The label peeling machine solves the problem that as the amount of backing paper recovered by the collection assembly increases, the motor rotation is inconsistent with the width of the label paper and the labels cannot be peeled normally, improving the accuracy of label peeling.

VIDEO SIGNAL TRANSMISSION METHOD AND APPARATUS

Disclosed is a video signal transmission method, comprising: obtaining target video signals, decoding the target video signals, and dividing, according to a pre-set strategy, the decoded target video signals into a pre-set number of paths of video signal groups; transmitting the video signal groups to a signal processor, and controlling the signal processor, such that same processes the video signal groups; and transmitting the processed video signal groups to a display terminal, so that video signals in each of the processed video signal groups are displayed in corresponding areas of the display terminal. Further disclosed is a video signal transmission apparatus. By means of the present invention, after target video signal data is acquired, the target video signal data is divided into a pre-set number of paths of video signal groups, so that each group of video signals can be transmitted in the existing video signal transmission manner, thereby realizing the transmission of high bandwidth ...

LABEL DISPENSER

A label dispenser for separating backing paper of label paper from label, comprising a machine body (1) and a bottom plate (2); the machine body (1) is mounted on the bottom plate (2), and the machine body (1) is connected to a material releasing assembly (4), a material collecting assembly (5), a separating assembly (6) and an adjusting assembly (7); the adjusting assembly (7) comprises a pressure roller shaft mechanism (71) and an adjusting knob (72) connected thereto; and the adjusting assembly (7) and the material collecting assembly (5) are connected to a motor to rotate, the material releasing and material collecting speeds being kept consistent. When the dispenser is not started, label roll paper to be pasted is mounted on the releasing assembly (4), and the label paper to be pasted is manually pulled out, and first passes through the separating assembly (6), and then is wound to the adjusting assembly (7). By means of rotating the adjusting knob (72), the label paper is clamped ...

Tank field breathing waste gas treatment device integrating collection, recovery and deep purification treatment

The invention relates to the technical field of environmental protection and energy conservation, and discloses a tank field breathing waste gas treatment device integrating collection, recovery and deep purification treatment, which comprises a storage tank, a buffer tank, a condensation system, a mixer and a catalytic oxidation skid-mounted device. The tank field breathing waste gas treatment device integrating collection, recovery and deep purification treatment effectively solves the problems that when tank field feeding is not considered, gas flow fluctuation is large, corresponding gas emission amount is large, a conventional waste gas treatment method is difficult to adapt to large-flow fluctuation, the concentration of non-methane total hydrocarbon in purified gas quickly exceeds 100 mg/m < 3 >, and the gas emission amount is large. The problems that in the whole operation process, the breathing waste gas treatment process is simple, in the waste gas treatment process, the recovery ...

Infrared online temperature measuring device and infrared online temperature measuring method

The invention discloses an infrared on-line temperature measurement device and an infrared on-line temperature measurement method, belongs to the field of electric power temperature measurement, and solves the problem that the temperature measurement reliability is affected due to weak anti-interference capability in the prior art. According to the technical scheme, the infrared temperature measuring device mainly comprises an infrared temperature measuring unit, a central processing unit, an infrared communication unit, a software filtering unit and a display unit, and the infrared temperature measuring unit is in communication connection with the central processing unit through the software filtering unit and the infrared communication unit. The central processing unit processes all information and generates display information, and the central processing unit and the display unit send and receive signals through infrared communication of the infrared communication unit. The infrared ...

Cutinase mutant and application of cutinase mutant to efficient degradation of PET (Polyethylene Terephthalate)

The invention discloses a cutinase mutant and application of the cutinase mutant to efficient degradation of PET (Polyethylene Terephthalate). The amino acid sequence of the cutinase mutant is as shown in SEQ ID NO.2, and phenylalanine at the 239th site of the amino acid sequence of wild cutinase as shown in SEQ ID NO.1 is replaced with alanine. The cutinase mutant constructed by the invention is expressed in escherichia coli, compared with a wild enzyme, the activity of the mutant enzyme has the advantages that the stability is improved, the catalytic efficiency is improved, and the yield of PET plastic (polyethylene glycol terephthalate, PET) degradation products is increased by 42.6 times. The modified cutinase mutant improves the PET degradation efficiency, can reduce the production cost, and is more suitable for industrial application.

Cladosporium oxysporum SCSIO 81042 capable of efficiently degrading plastics and application of cladosporium oxysporum SCSIO 81042

The invention discloses cladosporium oxysporum (Cladosporium oxysporum) SCSIO81042 capable of efficiently degrading plastics and an application of the cladosporium oxysporum SCSIO81042. The cladosporium oxysporum can be used for efficiently degrading plastics. The cladosporium oxysporum SCSIO81042 is preserved in the China General Microbiological Culture Collection Center on November 04, 2022, and the preservation number of the cladosporium oxysporum SCSIO81042 is CGMCC (China General Microbiological Culture Collection Center) No.40405. After the cladosporium oxysporum SCSIO81042 is cultured for 2 days in an MSM inorganic salt basic culture medium taking PU as a unique carbon source, PU is basically degraded, the degradation rate reaches 100%, and meanwhile, an obvious hydrolytic transparent circle appears on a solid plate taking PU as the unique carbon source on the third day of inoculation. The cladosporium oxysporum SCSIO81042 disclosed by the invention has a function of quickly degrading ...

Comprehensive test equipment for brushless direct current motor of unmanned aerial vehicle

The invention discloses comprehensive test equipment for a brushless direct current motor of an unmanned aerial vehicle. The comprehensive test equipment comprises an electric appliance cabinet, a test platform, a protection device fixed on the test platform, a motor test mechanism mounted on the test platform and a data acquisition mechanism, the data acquisition mechanism comprises a mechanical measurement assembly and a rotating speed measurement assembly, the mechanical measurement assembly is installed in the motor test mechanism, and the rotating speed measurement assembly is installed on the protection device. According to the invention, the current, voltage, rotating speed and pulling force of the motor can be automatically tested, a curve of the output rotating speed of the motor and the pulling force of the paddle can be drawn under the condition of corresponding input voltage and current, whether the motor meets corresponding requirements or not can be quickly and accurately ...

PET plastic efficient degrading bacterium and application thereof

The invention discloses a PET plastic efficient degrading bacterium and application thereof. The nocardia sp. SCSIO66511 is preserved in the China General Microbiological Culture Collection Center (CGMCC), the preservation number is CGMCC No.26044, the preservation address is Institute of Microbiology, Chinese Academy of Sciences, 3 #, 1 # yard, West Beichen Road, Chaoyang District, Beijing, the postal code is 100101, and the preservation date is December 4, 2022. The nocardia sp. SCSIO 66511 disclosed by the invention is derived from a marine environment, and has relatively high environmental adaptability and a good PET (Polyethylene Terephthalate) plastic degradation effect.

Hybrid domain feature optimization-based power quality disturbance identification method

The invention discloses an electric energy quality disturbance identification method based on mixed domain feature optimization, and relates to the field of electric energy quality disturbance detection. Electric energy quality disturbance signals are generated through simulation, and statistical feature subsets of the disturbance signals are extracted; performing S transformation on the power quality disturbance signal to obtain a modular matrix; extracting a time domain curve and a frequency domain curve from the modular matrix, and respectively extracting values from the time domain curve and the frequency domain curve to form a feature subset; constructing a high-dimensional feature complete set by the three feature subsets, and obtaining a low-dimensional optimal feature vector by adopting PSO (Particle Swarm Optimization); and inputting actual sampling data to extract optimal features, and carrying out classification identification on the power quality disturbance by adopting a KNN ...

Light supplementing device of telecentric coaxial lens and image capturing device

The light supplementing device comprises a light source, a light collecting lens, a light guide column and a light emitting lens, the light collecting lens is arranged at a light inlet of the light guide column and used for collecting light emitted by the light source, and the end, close to the light collecting lens, of the light guide column is provided with a taper; the diameter of the end, close to the light collecting lens, of the light guide column is larger than that of the end, close to the light outlet lens, of the light guide column, and the light outlet lens is arranged at a light outlet of the light guide column. Light emitted by the light source sequentially enters the light-in lens, the light guide column and the light-out lens and is emitted out of the lens microstructure to enter the lens group of the circle center coaxial lens. The telecentric coaxial lens solves the problem that light rays are not uniform at a light outlet due to the fact that the light rays are concentrated ...

Deep purification treatment device for chlorinated hydrocarbon-containing organic waste gas

The invention relates to the technical field of organic waste gas deep purification treatment, and discloses a chlorinated hydrocarbon-containing organic waste gas deep purification treatment device which comprises a first alkaline washing tower, a first pipeline is arranged on the surface of the first alkaline washing tower, and the other end of the first pipeline is fixedly connected with a first activated carbon adsorption box; a second fan is arranged on the side surface of the first activated carbon adsorption box. According to the deep purification treatment device for the chlorinated hydrocarbon-containing organic waste gas, a halogenated organic matter cannot be combined with an active center of a catalyst, so that catalyst poisoning cannot be generated when the halogenated organic matter is treated, and the treatment efficiency is greatly improved; as the pore density of the catalyst is relatively high, the design airspeed can be improved, the volume of a catalytic oxidation reactor ...