Xintrum Pharmaceuticals, Ltd.

Nanjing Chervon Industry Co., Ltd.

Nanjing University

Nanjing University & Yancheng Academy of Environmental Protection Technology and Engineering

Nanjing Jiagu-chucheng Communication Technology Co., Ltd.

Nanjing Nanji Intelligent Agricultural Machinery Technology Research Institute Co., Ltd.

Yi Zhang

Yuesheng Wang

Hongliang Sun

Aimin Li

Wei Dong Wang

Chendong Shuang

Yang Li

Rui Zhan

Zhongquan Xu

Rong Wang

Weiwei Zhou

Qimeng Li

Hang Yu

Muyang Zhang

Shaobin Li

Yunshu Wang

Panwei Hu

Hai Chen

Lili Liu

Mingqing Tong

Wenchao Liu

Dong Jin

A power tool includes a housing, a motor, a ball sleeve, an oscillating member with a mounting portion, and an output shaft rotating around an output shaft axis. The oscillating member and the ball sleeve are engaged in an engagement region on the oscillating member, and the geometric center of the engagement region is an engagement center. A first plane bisects the first bearing assembly along a direction of the output shaft axis, and a second plane bisects the second bearing assembly along the direction of the output shaft axis. The height from the engagement center to the first plane is a first height H1, the height from the engagement center to the second plane is a second height H2, and the ratio H1/H2 of the first height H1 to the second height H2 is greater than or equal to 0.5 and less than or equal to 1.4.

Power tool

Disclosed are a method for controlling an unmanned aerial vehicle, a method for controlling outbound and return trips of an unmanned aerial vehicle, an unmanned aerial vehicle, a medium, and a control system. The method for controlling an unmanned aerial vehicle includes: obtaining, in a process of flying along a target course sent by a first ground station, first positioning auxiliary information sent by the first ground station; adjusting a flight attitude according to the first positioning auxiliary information, to fly along the target course; in a case of determining that a ground station switching condition of the second ground station is satisfied, obtaining the second positioning auxiliary information sent by the second ground station; and adjusting the flight attitude according to the second positioning auxiliary information, to fly along the target course to reach the second location point.

Method for controlling unmanned aerial vehicle, method for controlling go and return trip of unmanned aerial vehicle, unmanned aerial vehicle, medium, and control system

A gene combination capable of high-efficiency expression of rhNGF is provided to optimize gene expression regulation components of a recombinant human nerve growth factor. The gene combination enhances expression of rhNGF. As shown by experiments, the gene combination is capable of high-efficiency expression of a recombinant human nerve growth factor (rhNGF) with natural activity in a eukaryotic expression system.

Gene combination capable of high-efficiency expression of recombinant human nerve growth factor

A method for removing precursors in recombinant human nerve growth factor (rhNGF) by hydrophobic interaction chromatography (HIC) is provided, where a Chinese hamster ovary (CHO) cell culture is processed by column chromatography for preliminary purification, and the pretreated sample obtained therefrom is further processed in a HIC column by washing the sample and then eluting the HIC column.

Method for dynamically removing recombinant human nerve growth factor precursor by hydrophobic interaction chromatography

A method for green synthesis of uniform- and large-particle-size polystyrene particles, comprising steps of: prepolymerizing styrene at 70&#x25a1; to 75&#x25a1; for 1 h to 6 h in advance while stirring, adding divinylbenzene dissolved with initiators to the styrene, and stirring for 10 min to 30 min to obtain oil phase; heating lactic acid or an aqueous solution of lactic acid to 70&#x25a1; to 80&#x25a1;, adding the oil phase to dispersed phase by a constant-pressure device, maintaining the temperature for 2 h, heating to 80&#xb1;5&#x25a1; and then maintaining the temperature for 1 h, and heating to 85&#xb1;5&#x25a1; and then maintaining the temperature for 3 h to 6 h, to obtain polystyrene particles with a uniform particle size ranging from 0.7 mm to 2.0 mm.

Method for green synthesis of uniform- and large-particle-size polystyrene particles

The present invention discloses a concentration gradient test reagent kit and a testing method for use in bacterial/fungal drug susceptibility testing. The reagent kit includes a test strip unit. The test strip unit includes a strip-shaped culture medium container and a drug container. The culture medium container and the drug container comprise axially-arranged culture medium cells and drug cells, respectively. The culture medium cells can be inserted into corresponding drug cells. The drug container and the culture medium container are stable, easy to preserve and transport, and can be included into a reagent kit for long-term storage. The kit allows for easy and convenient testing operations. Testing results are easy to observe and interpret. The kit can be used in drug susceptibility testing on slow-growing fungi and anaerobic bacteria. Testing procedures and waste processing is biologically very safe.

Concentration gradient test reagent kit and testing method for use in bacterial/fungal drug susceptibility testing

Growing community of inventors

Nanjing, China

Yi Zhang