Abstract: An indoor unit apparatus of a split-type air conditioner and a method for using the same are provided, which can realize both of an impinging jet ventilation manner and a displacement ventilation manner. A thin air layer can be formed on the ground through using the indoor unit apparatus of a split-type air conditioner, and the indoor unit apparatus of a split-type air conditioner is adapted to be used both in summer and in winter.

Abstract: A method for isolating and selecting Trichoderma Virens with an aerobic denitrification function and a method for remediating a water body with a low carbon-to-nitrogen ratio using the Trichoderma Virens are provided. Compared with the prior art, the biological treatment adopted by the present disclosure can allow the relatively-complete removal of nitrates without producing a residue, and exhibits advantages such as low cost, efficiency, and eco-friendliness. Further, the biological treatment adopted by the present disclosure can enhance the resistance of the fungus to toxic compounds and harsh environments, significantly promote the removal of nitrogen and organic matters in a water body, improve a decontamination ability of a water body, and increase the diversity of microorganisms in a water body, thereby accelerating the promotion of remediation of a water quality of a water body with a low carbon-to-nitrogen ratio. Therefore, the present disclosure has an extensive application potential.

Abstract: A solvent-free and ligand-free ball milling method for preparation of cesium lead tribromide (CsPbBr3) quantum dot is provided. First, mixing a Cs source, a Pb source, and a Br source as per a molar ratio of Cs source:Pb source:Br source is 1:1˜6:1˜9, and then adding polymethyl methacrylate (PMMA) to obtain a mixture. The mixture is milled for 1-2 hours at a rotation speed in a range of 360˜630 revolutions per minute (r/min) in a ball milling device, obtaining CsPbBr3 quantum dot. The method has advantages such as simple process, easy industrial production, no solvent, no organic ligand, low cost, and environmental protection. A quantum yield of product obtained by the method is up to 78%, and the product has a strong environmental stability. A preparation temperature of the product is low, and the reaction can be completed at a room temperature without a high temperature treatment.

Abstract: A method for tuning predictive control parameters of a building energy consumption system based on fuzzy logic: 1) constructing a controlled building energy consumption system, performing generalized predictive control on the building energy consumption system, and initializing an tuned parameter ? of a generalized predictive controller; 2) collecting the output slope yk (t), the actual output y(t), the set value yr(t) and the predicted output value ?(t+i) of the controlled building energy consumption system in the control process, and then taking them as fuzzy target parameters; 3) constructing a membership function for the fuzzy target parameters in step 2), and then optimally selecting the parameters of the fuzzy membership function by using a particle swarm optimization algorithm to obtain membership function parameters of each fuzzy target parameter; 4) carrying out fuzzy reasoning operation on the membership function parameters, and tuning the adjusted parameter ? by using the results of fuzzy reasoning

Abstract: An integrated device and method for enrichment, purification and separation of microplastics in a secondary effluent are provided. This integrated device comprises a micro-spray system and a filtering system with multi-stage filtering units, and marked screen meshes were installed in each filtering unit. The microplastics in secondary effluent are enriched on the surface of the marked screen meshes through the retaining effect. Then, lower concentration of alkali, acid or oxidant combined with the heat treatment to weaken the interaction forces between the inorganic/organic foulants and the enriched microplastic. On this basis, the micro-spray system was used to rinse the multistage filtration system, which generated shear force to carry away the foulants on the surfaces of the enriched microplastics, thereby achieving the purification and separation of microplastics synchronously. These are performed in the marked screen meshes, in which the microplastic are not subject to any path transfer or loss.

Abstract: A system and method for nighttime lighting control and danger monitoring and alarming are provided. The system includes a data acquisition system, an information processing system, and a terminal control system. The data acquisition system is configured to acquire video information in a room and a voice content of a person in the room, and transmit the video information and the voice content to the information processing system; the information processing system is configured to obtain voice command information based on the voice content and age information and safety state information of the person based on the video information, and transmit the voice command information, the age information and the safety state information to the terminal control system; and the terminal control system is configured to control a terminal lighting fixture, and perform capturing of an image of the person and perform voice alarming according to the safety state information.

Abstract: A method for enhancing compressive strength of a lead smelting water-quenched slag-based cementitious material by mechanical activation is provided, belonging to the technical field of solid waste resource treatment. The method includes following steps: grinding and activating water-quenched slag from lead smelting, then mixing with calcium-based solid waste, magnesium-based solid waste, magnesium oxide, portland cement and water, and performing a steam curing and a curing at normal temperature on cementitious material slurry obtained to obtain the lead smelting water-quenched slag-based cementitious material.

Abstract: A method for constructing a dynamic-like membrane to control membrane fouling of MBR includes: determining a critical pore size of a base material according to an average size of activated sludge in a membrane tank. The base material is detachably fixed on the outer layer of a conventional MBR module, which is placed into the membrane tank of a wastewater treatment system. Then the aeration rate of a membrane area in the MBR module is reduced. With the assistance of the driving pressure of the MBR module itself and the physical interception of the base material, the inherent activated sludge in the membrane tank is used to form a dynamic-like membrane on the surface of the base material.

Abstract: Fatigue driving monitoring, reminding and early-warning method and system based on computer vision are provided. The system includes: a fatigue real-time monitoring system for identifying fatigue characteristic postures of a driver and obtaining a fatigue level according to frequencies of the fatigue characteristic postures and a driving time; a fatigue automatic reminding system for receiving the fatigue level, obtaining a vehicle real-time position information and providing the driver with a corresponding grade of reminder according to the fatigue level; and a fatigue information early-warning system for receiving the fatigue level and the vehicle real-time position information to obtain a fatigue safety index, so that a cloud map of fatigue road conditions is obtained according to the fatigue safety index and shared with traffic management departments and drivers for early-warning. It reduces the situation of fatigue driving on freeway and the hazard of traffic safety accidents caused by fatigue driving.

Abstract: Disclosed are a room temperature curable quick-setting high-strength alkali-activated fly ash (AAFA) cementitious material and a preparation method thereof, belonging to the technical field of building materials. The raw materials include: in parts by mass, 30-50 parts of undisturbed fly ash, 50-70 parts of highly reactive ultra-fine fly ash, and 12-18 parts of sodium hydroxide. Specifically, the AAFA with fast setting and high strength for room temperature curing is prepared by pretreatment of fly ash with sodium hydroxide exciter, based on a premise that the raw material system and preparation process are simplified and feasible.

Abstract: A construction site safety monitoring system based on computer vision is provided. It includes a data acquisition system for collecting video information of personnel and operation platforms on construction site in real time; an information processing system for detecting and distinguishing the personnel and the operation platforms in the video information, intercepting personnel feature images and video of tilted operation platform whose personnel facial temperature and inclination angles after calculation are greater than or equal to preset values as a personnel safety incident and a platform safety incident respectively; and a terminal reminder system for receiving information of at least one the personnel safety incident and the platform safety incidents and providing a reminder.

Abstract: Indoor personnel information identifying apparatus and method for assisting an air conditioning system of on-demand air supply are provided, the apparatus includes a data acquisition device, an information processing device and an information display device, the data acquisition device is configured to acquire weight information and shoe image information of personnel in real time, the information processing device is configured to predict an total calorific value of indoor personnel according to a real-time number of indoor personnel and obtain recommended air supply parameter information for the air conditioning system according to the total calorific value, the information display device is configured to receive and display personnel information processed by the data acquisition device and the information processing device and the recommended air supply parameter information.

Abstract: Sunshading louver control system and method based on gesture recognition are provided. Indoor images are collected in real time. Based on the indoor images, an action region of gesture motion is positioned and feature extraction is performed thereon to obtain hand motion parameters. The hand motion parameters are analyzed to obtain gesture information. The gesture information is compared with preset gesture information. When the preset gesture information contains the gesture information, corresponding adjustment is performed on a sunshading louver according to a preset operation logic corresponding to the gesture information. When the preset gesture information does not contain the gesture information, the gesture information is determined to be invalid.

Abstract: Disclosed are modified expanded polystyrene (EPS) particles and a modification method thereof, and concrete containing the modified EPS particles and a preparation method thereof, relating to the technical field of inorganic building materials. The modification method of the EPS particles includes following steps: (1) spraying adhesive materials on surfaces of the EPS particles in a stirring state, and obtaining the EPS particles with the adhesive materials attached to the surfaces; and (2) mixing the EPS particles attached with the adhesive materials with inorganic mixed materials to obtain the modified EPS particles. The preparation method of modified EPS concrete includes: mixing the modified EPS particles with a cementitious material, adding an admixture and water, and uniformly stirring to obtain the modified EPS concrete.

Abstract: A control system and a control method for individual thermal comfort based on computer visual monitoring are provided. The control system may include a data acquisition device, an information processing device, an intelligent voice inquiry device, a terminal control device including a terminal controller connected to an external equipment and a biological real-time device connected to the data acquisition device and a human thermal sensation predictor. The data acquisition device includes a semi-contact measurement instrument and a contact-less measurement instrument. The contact-less measurement instrument includes an infrared sensor and a camera built with a skeletal node recognizer and an Euler video amplifier. The information processing device may include a memory, the human thermal sensation predictor for obtaining the predicted thermal sensation value and a comparator connected to the intelligent voice inquiry device. It solves the problem that the prior art cannot meet the thermal comfort.

Abstract: An L-shaped shear wall module including an L-shaped outer pattern plate, an L-shaped inner pattern plate, and connectors connected between the L-shaped outer pattern plate and the L-shaped inner pattern plate. The L-shaped outer pattern plate 100 and the L-shaped inner pattern plate 200 are arranged in parallel to each other. The L-shaped inner pattern plate includes a first inner pattern plate and a second inner pattern plate which are perpendicular to each other. A corner transition block is disposed at a corner of the L-shaped inner pattern plate. The corner transition block has a protruding surface protruding towards the L-shaped outer pattern plate. The protruding surface of the corner transition block and the inner surface of the L-shaped outer pattern plate jointly enclose a concreting cavity at the corners for concreting reinforced concrete. The present application also provides a shear wall and a construction method thereof.

Abstract: A T-shaped shear wall module including a straight pattern plate, two L-shaped pattern plates with a same structure, and connectors. Each of the two L-shaped pattern plates includes a first pattern plate and a second pattern plate which are perpendicular to each other. In a direction perpendicular to the straight pattern plate, the two first pattern plates are arranged in parallel to each other and both extend in a direction away from the straight pattern plate, and a plurality of connectors are rigidly arranged between two first pattern plates. Along a direction parallel to the straight pattern plate, two second pattern plates are coplanar and extend in opposite directions, and a plurality of connectors are rigidly arranged between the straight pattern plate and the two second pattern plates. The present application also provides a shear wall and a construction method thereof.

Abstract: A composite ozone flotation integrated device may include a cylinder body, an intermediate cylinder, and a central cylinder which are coaxial. The cylinder body and the center cylinder have a common bottom. The cylinder body and the intermediate cylinder have a common top. The intermediate cylinder is arranged on support channel steel between the cylinder body and the center cylinder. A top of the center cylinder is in the intermediate cylinder. The top of the center cylinder is open-mouthed. An upper part of the cylinder body is provided with a drainpipe. The top of the cylinder body is provided with an inner cylinder exhaust pipe and a slag discharge pipe. An upper part of the intermediate cylinder is provided with an outer cylinder exhaust pipe. A lower part of the center cylinder is connected to a water inlet pipe, a dissolved gas inlet pipe, and a venting and sludge-discharge pipe.