Yantai Jereh Petroleum Equipment & Technologies Co., Ltd.

Goertek Inc.

Wanhua Chemical Group Co., Ltd.

Shandong Jianzhu University

Wanhua Chemical (ningbo) Co., Ltd.

Weihai Hualing Opto-electronics Co., Ltd

Wanhua Chemical (beijing) Co., Ltd.

Zibo Leyouyou Agricultural Technology Co., Ltd.

Kai Wang

Weiwei Liu

Shouzhe Li

Pengyuan Zhang

Peng Wang

Song Zhang

Zhen Huang

Yipeng Wu

Zhuqing Mao

Shuzhen Cui

Jifeng Zhong

Bin Jiang

Xiaoyu Chi

Kaishen Liu

Xin Wang

Haiping Xing

Wuchang Qi

Feng Gao

Yibo Jiang

Kun Zhang

Xiangjun Zhang

Tao Qiu

Junwei Ma

Mingxing Li

Daoji Wu

Hao Yang

Xiaoxiang Cheng

Hongye Li

Xiao Zhang

Congwei Luo

Yulin Zhu

Fengxun Tan

Zhenguang Wen

Yu Tian

Juan Deng

Yingshu Liu

Tiecun Wang

Tingchang Lv

Kai Yu

Ruohui Wang

Kui Zhao

Haitao Qiao

Liangfang Wang

Haojie Lin

Yuanjie Xie

Chuanbo Wang

A virtual scene playback method is disclosed, which comprises: receiving a scene playback instruction and determining playback parameters according to the scene playback instruction, wherein the playback parameters include playback space and playback time; querying virtual space information and user model information corresponding to the playback parameters; and generating virtual scene playback content according to the virtual space information and the user model information. The present disclosure can save all the information in the virtual scene and play back the virtual scene corresponding to specific space and time. A virtual scene playback apparatus, an electronic device and a storage medium are also disclosed, which also have the above beneficial effects.

Virtual scene playback method and apparatus, electronic device, and storage medium

The present disclosure specifically relates to a liquid dressing for promoting wound healing. The liquid dressing comprises components of, in percentage by weight: 1% to 2% of monomeric silicic acid and 98% to 99% of distilled water. The liquid dressing also comprises aloe, vitamin C, fish oil, and curcumin. The components comprise, in percentage by weight: 1% to 2% of monomeric silicic acid, 3% to 5% of aloe, 5% to 7% of vitamin C, 1% to 3% of fish oil, 1% to 2% of curcumin, and the balance being the distilled water. The liquid dressing for promoting wound healing in the present disclosure has a great promotion effect on wound healing, particularly in accelerating healing of refractory wounds caused by hyperglycemia. Moreover, the liquid dressing for promoting wound healing in the present disclosure has a certain auxiliary effect on other refractory wounds that do not heal for a long time.

Liquid dressing for promoting wound healing

In a fracturing control apparatus, a first chemical agent storage tank is connected with a first delivery pump, and a material outlet of the first delivery pump communicates with a first position of a first fracturing fluid conveying pipeline. An outlet of the first fracturing fluid conveying pipeline communicates with an inlet of a fracturing pump, an outlet of the fracturing pump communicates with an inlet of a second fracturing fluid conveying pipeline, and a first flow detector is arranged at a second position of the second fracturing fluid conveying pipeline. The first delivery pump is connected with a first output interface of a controller, and the first flow detector is connected with a first input interface of the controller. The fracturing control apparatus and the control method of the fracturing control apparatus are used for adding chemical agents into fracturing fluids.

Fracturing control apparatus and control method therefor

The present disclosure provides a fracturing fluid mixing equipment including a clear water supply system, at least two mixing systems, at least one powder tank, at least two powder conveying systems, a mixing tank, a feeding system and a power system. The clear water supply system has two parallel water supply paths which are connected to the mixing system and the mixing tank respectively. The powder conveying system is connected to the powder tank. There are same number of powder conveying systems and mixing systems which are connected in one-to-one correspondence. The mixing system is connected into the mixing tank. The feeding system adds powder by pneumatic conveying. The power system provides driving force by pure electric power and/or electro-hydraulic power. According to present disclosure, the power system can reduce fuel consumption and exhaust emissions. The feeding system can be compatible with various adding conditions of powders in different packaging, which can reduce the possibility of dust pollution, thereby reducing labor costs and occupational injuries and being more efficient and environmentally friendly.

Fracturing fluid mixing equipment

A feedback noise reduction method, a feedback noise reduction system, and an earphone are provided. In the method, a channel morphological parameter of an acoustic channel between a microphone and a speaker in a feedback noise reduction system is detected; the feedback noise reduction system is switched from using a first noise reduction filter to using a second noise reduction filter in a case that it is determined that the acoustic channel is in an interfered state based on the channel morphological parameter; and a noise reduction signal is generated by using the second noise reduction filter to cancel a noise signal received by the feedback noise reduction system. A frequency response of the second noise reduction filter in a predetermined frequency band is less than a frequency response of the first noise reduction filter in the predetermined frequency band.

Feedback noise reduction method and system, and earphone

An anaerobic-AO-SACR combined advanced nitrogen removal system for high ammonia-nitrogen wastewater, in which high ammonia-nitrogen wastewater first enters an anaerobic reactor to remove most of organic matters from the wastewater, effluent water enters an AO reactor for nitrogen removal by pre-denitrification in an anoxic zone and for removal of the remaining organic matters and nitrification of ammonia nitrogen in an aerobic zone, and then the effluent water enters an intermediate pool. Meanwhile, under the control of a water quality testing device and a PLC controller, a part of raw water is introduced into the intermediate pool to adjust the carbon nitrogen ratio of the wastewater. Then, the effluent water enters an SACR reactor, and the wastewater undergoes pre-denitrification-nitrification-endogenous denitrification precisely by using the characteristics of denitrifying bacteria and through adjustment and control of PH/DO/ORP testers and the PLC controller on the SACR reactor so as to realize advanced nitrogen removal.

Anaerobic-AO-SACR combined advanced nitrogen removal system and technology for high ammonia-nitrogen wastewater

An evaluation method and an evaluation device for evaluating a health state of well site equipment, and a storage medium are provided. The evaluation method for evaluating the health state of the well site equipment includes: obtaining operating parameters of a component to be tested of equipment to be tested in at least one dimension, the at least one dimension including an operating data dimension, an environmental data dimension, and a maintenance data dimension; obtaining evaluation values of a health state of the component to be tested in various dimensions based on the operating parameters of the various dimensions; obtaining a comprehensive evaluation value of the health state of the component to be tested based on the evaluation values of the health state of the component to be tested in the various dimensions.

Evaluation method and evaluation device of health state of well site equipment, and storage medium

Embodiments of the present disclosure provide a ferromagnetic object detection device and a method for detecting a tubing coupling. The ferromagnetic object detection device includes a support tube, a magnetic field generating device and a magnetic detection device. The support tube includes a space penetrating in a first direction; the magnetic field generating device is located on an outer sidewall of the support tube and configured to generate a magnetic field; the magnetic field detection device includes a first magnetic field detection element, a second magnetic field detection element and a third magnetic field detection element.

Ferromagnetic object detection device and method for detecting tubing coupling

An image scanning apparatus, and a method and an apparatus for controlling receiving of an image scanning optical signal are provided. The mage scanning apparatus may include an array photosensitive pixel unit configured to receive at least one optical signal, and a control circuit connected with the array photosensitive pixel unit and configured to control the array photosensitive pixel unit to receive the at least one optical signal. With the adoption of the image scanning apparatus, and the method and the apparatus for controlling receiving of the image scanning optical signal, the problem in the related art that an image is easily interfered by external stray lights within a non-exposure time of a scanning period and accordingly quality of a scanned image is reduced may be solved.

Image scanning apparatus, and method and apparatus for controlling receiving of image scanning optical signal

The present invention relates to a method for preparing TDI (toluene diisocyanate) isocyanurate by using TDI, monohydric alcohol, solvent, antioxidant, catalyst and termination agent as the raw materials. The properties of the isocyanurate are improved by the process comprising the modification by monohydric alcohol and addition of the catalyst and solvent in several stages at an appropriate temperature. By adding the catalyst and solvent in batches at the condition of controlling both NCO % and the viscosity in the preparation process, and adjusting the solid content at each step, the resulting TDI isocyanurate has low content of free TDI, high xylene tolerance, small product color number, and high performance stability, which makes the product obtained by the isocyanurate have good application properties such as the drying, polishing and extinction properties of coating film, and such isocyanurate has good compatibility with other components.

Process for preparing TDI isocyanurate

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Shandong, China

Kai Wang