Other

Huawei Digital Power Technologies Co., Ltd.

Shaanxi Lighte Optoelectronics Material Co., Ltd.

Xi'an Modern Chemistry Research Institute

Jian Li

Tiantian Ma

Chao Yu

Hua Wu

Xin Wang

Biao Hu

Cheng Yang

Bo Yang

Xunshan Sha

Mingming Pu

Langlang Li

Zhaoyi Che

Danyang Wan

Lu Zhang

Lingchao Mo

Zhongwei An

Xiaozhe Yang

Fengjiao Shi

Juanli Li

Minggang Hu

Zhiyao Lu

Zonghao Yang

Mingtan Li

The present application provides a nitrogen-containing compound as represented by formula I, an electronic element, and an electronic device, which relates to the technical field of organic materials. The nitrogen-containing compound can improve the performance of the electronic element.

Nitrogen-containing compound, electronic element and electronic device

Disclosed are a liquid crystal (LC) composition and a high-frequency component including the same. The LC composition includes one or more selected from compounds shown in structural formula (I) and one or more selected from compounds shown in structural formula (II):

Liquid crystal (LC) composition with extremely-low dielectric loss and high-frequency component including same

This application provides a cooling system, including a heat exchanger, a cooling supplement component, a bypass vent valve, and a controller. The heat exchanger includes an air intake vent A and an air exhaust vent B that are used for outdoor fresh air entry and discharge, and an air intake vent C and an air exhaust vent D that are used for indoor return air entry and discharge. The cooling supplement component includes a condenser and an evaporator, the condenser is connected to the air exhaust vent B by using an exhaust air pipe, and the evaporator is connected to the air exhaust vent D. The bypass vent valve is disposed on the exhaust air pipe, and the bypass vent valve communicates with outdoor air. The bypass vent valve is connected to the controller, and the controller is configured to control the bypass vent valve.

Cooling system and data center

Embodiments of this application provide a centrifugal pump. The centrifugal pump includes a pump casing and a first drive mechanism, a second drive mechanism, a pump shaft, and an impeller that are disposed in the pump casing. The pump casing includes a first chamber and a second chamber that are connected. An axis of the pump shaft coincides with axes of the first chamber and the second chamber. An inner diameter of the second chamber is greater than that of the first chamber. The impeller is connected to an end of the pump shaft. The first drive mechanism and the second drive mechanism are connected to the pump shaft and located on a side, away from the impeller, of the pump shaft. The first drive mechanism is configured to drive the pump shaft to rotate.

Centrifugal pump

This application provides an evaporative cooling unit. The evaporative cooling unit includes an outdoor channel, an indoor channel, and a heat exchange apparatus, and, further includes: an air filter and a defrosting apparatus that are disposed in the outdoor channel. The defrosting apparatus is located on a side that is of the air filter and that is close to an air intake vent of the outdoor channel. The defrosting apparatus includes a heat exchange film, and the heat exchange film has a first channel and a second channel that are arranged crosswise. The first channel communicates with the air intake vent of the outdoor channel, the second channel communicates with the indoor channel, and the first channel communicates with the second channel. The defrosting apparatus further includes a switch valve, and the switch valve is configured to control the second channel to communicate with the indoor channel.

Evaporative cooling unit and data center

The present disclosure belongs to the field of organic electroluminescent materials, and specifically relates to a nitrogen-containing compound, an electronic component using the nitrogen-containing compound and an electronic device using the nitrogen-containing compound. The nitrogen-containing compound has a structure as shown in Formula 1. When the nitrogen-containing compound of the present disclosure is used in an organic electroluminescent device, properties of the device can be effectively improved.

Nitrogen-containing compound, electronic component using same and electronic device

The application discloses an organic compound, an electronic element with the organic compound, and an electronic device including the electronic element. The organic compound of the present application has a fused heteroaromatic group containing fluorenyl or silylfluorenyl as its core structure, which presents a large planar structure in a three-dimensional (3D) space; and an electron-rich arylamine or heteroarylamine substituent is introduced at position 9 of the fluorenyl or silylfluorenyl to make the compound have excellent hole transport performance.

Organic compound, electronic element, and electronic device

The present invention discloses a laundry box, comprising a laundry box body, a seal cover and a drain fence, wherein laundry box water inlets and a laundry box drain outlet are provided at the bottom of the laundry box body, a decontamination conductor plate is provided in the middle thereof, a clothes placing port is provided at the top of the laundry box body, and the seal cover is hinged at the clothes placing port; and the drain fence is detachably mounted inside the laundry box body and is located at the side end close to the drain outlet. The present invention further discloses a machine for separately washing clothes designed to be used in conjunction with the laundry box, comprising a housing, a main machine, a cover plate and at least two laundry boxes.

Laundry box and machine for separately washing clothes

The present invention relates to a composite microorganism enzyme, a method for preparing a plant nutrient solution by using the composite microorganism enzyme, and a fertilizer synergist. The method comprises the following steps: mixing fresh kelp pulp with a composite microorganism enzyme; and performing enzymolysis on the mixture of the fresh kelp pulp and the composite microorganism enzyme in an enzymolysis vessel to obtain the plant nutrient solution; the composite microorganism enzyme comprises more than one kind each of cellulase, pectinase, protease and amylase, the mass percentage of the cellulases and the pectinases being far greater than that of the proteases and the amylases. The present method for preparing a plant nutrient solution involves a simple enzymolysis process, mild reaction conditions, low costs and no other chemical compositions during the reaction processes, and maintains more of the active ingredients of the fresh kelp.

Composite microorganism enzyme, method for preparing plant nutrient solution by using composite microorganism enzyme, and fertilizer synergist

A multivariate signature method for resisting key recovery attack, which establishes a new signature verification condition by adding additional value of signature. The verification condition implies verification of internal information x and y, thereby effectively resisting key recovery attack generated by the existence of equivalence key. Specifically, the method includes the three stages of data preprocessing, signature generation and signature verification. The invention is a signature authentication method based on polynomial equations of a plurality of variables in a finite field, which can effectively resist the key recovery attack, provide the basic technical support for the information security and the establishment of the trust system in the quantum computer era, and provide a secure digital signature option in the quantum era. The present invention is especially suitable for use under application condition which has limited storage and processing time, such as smart cards, wireless sensor networks and dynamic RFID tags.

Growing community of inventors

Xi'an, China

Jian Li