Southeast University

Nanjing Noratech Pharmaceuticals Co., Ltd

Nanjing University of Aeronautics and Astronautics

Chia Tai Tianqing Pharmaceutical Group Co., Ltd.

Nanjing Hydraulic Research Institute Under the Ministry of Water Resources, the Ministry of Transport and the Ministry of Electric

Chengdu Branch of Guodian Academy of Science and Technology Co., Ltd.

Gang Wu

Fei Liu

Cheng-Gang Lin

Zhishen Wu

Weiming Jiang

Decheng Feng

Ping Lin

Xuan Cai

Yuling Lu

Lixiang Liu

De-Cheng Feng

Xu-Yang Cao

Fang Wang

Xiquan Zhang

Min Zhang

Chen Chen

Hong Zhu

Rui Zhao

Aiming Zhang

Lin Liu

Chunyan Wang

Wanzhong Zhao

Xiaochuan Zhou

Jun Li

Zhongkai Luan

Chunguang Xia

Ming Zhang

Sheng Yang

Hua Fu

Hua Ling

Xiaopeng Guo

Guangming Sang

Kentaro Iwashita

Denghua Li

Ziyu Zhang

Yanan Du

Ruiji Yi

Ting Shen

Yong Li

Yongyong Cao

Wanli Guo

Xinghua Li

Zhaosheng Zhang

Zeyang Sun

Jianbiao Jiang

Zehua Huangfu

Jinxiang Chen

Shilin Li

Juan Xie

Limin Xiao

Juhua Zhang

Jiefu Wu

Xingjian Zhou

Jingping Ming

Zhe Hu

Yulin Ye

Lifei Gong

Qiming Zhong

Yufeng Huangfu

Xuyang Cao

Jing Yuan

Jiayi Ding

Yingli Wu

Hongxia Fan

Shizhi Chen

Zhihang Ye

Chunlin Wang

An integral reinforcement design method of an external frame-brace based on a random capability spectrum is provided, and the reinforcement design method includes: evaluating an original structure before reinforcement by using a random capability spectrum method; performing a reinforcement analysis on an external frame-brace sub structure by using the random capability spectrum method to obtain a reinforced structure; and performing a reinforcement verification on the reinforced structure by using the random capability spectrum method. A performance based integral reinforcement design of the external frame-brace sub structure is achieved through considering uncertain factors, as well as capability spectrums and demand spectrums before and after the reinforcement, and converting the integral structure to equivalent single degree of freedom to obtain performance points.

Integral reinforcement design method for external frame-brace based on random capability spectrum

A calculation method for an annual average loss of an external substructure reinforcement system based on interfacial shear stresses is provided. The calculation method includes: step 1: establishing a deterministic model for an external substructure reinforcement system, and generating seismic ground motion samples and structural samples by random sampling; establishing a probabilistic hazard model based on the seismic ground motion samples; generating a probabilistic vulnerability model based on interfacial shear stresses; establishing a total probabilistic loss expectation model by different seismic ground motion intensity levels; and using the total probabilistic loss expectation model to obtain an annual average probabilistic seismic loss of the external substructure reinforcement system based on the interfacial shear stresses. The calculation method can realize classified calculations of the seismic loss of the external substructure reinforcement system. Compared with the traditional seismic loss calculation method, the calculation method is more efficient in calculation.

Calculation method for annual average probabilistic seismic loss of external substructure reinforcement system based on interfacial shear stresses

The present invention discloses a method and system for evaluating post-earthquake damage of building groups based on interferometric synthetic aperture radar (InSAR). Method includes: determining an investigation region, acquiring pre- and post-earthquake radar images of a corresponding district, and acquiring radar datasets included in radar images; acquiring a radar line-of-sight (LOS)-direction deformation map of investigation region by processing pre- and post-earthquake radar images using D-InSAR; acquiring a deformation in a main earthquake direction by decomposing an LOS-direction deformation; drawing a deformation classification map of buildings; acquiring pre- and post-earthquake optical remote sensing images of investigation region, and locating post-earthquake collapsed buildings; locating collapsed buildings in deformation classification map, comparing optical remote sensing images with deformation classification map, and locating exact positions of collapsed buildings; and evaluating post-earthquake damage of the buildings by evaluating post-earthquake damage conditions based on position information of collapsed buildings and the deformation classification map.

Method and system for evaluating post-earthquake damage of building groups based on InSAR

The invention discloses a ground motion intensity measure optimization method for seismic response prediction. The method includes the following steps: (1) building a building damage database; (2) optimizing ground motion intensity measures; (3) constructing a machine learning model; and (4) predicting damage states. According to the method, a combination of optimal ground motion intensity measures is selected by an elastic-net algorithm, wherein the efficiency and practicability in a current selection criterion are updated based on the goodness of fit and regression coefficient of the elastic-net model, thereby avoiding an assumption that intensity measures and structure response need to obey a logarithmic linear relationship and the limitation of intensity measure dimensions in traditional methods. By using the combination of optimal ground motion intensity measures as input variables, the prediction accuracy can be remarkably improved, and meanwhile the number of samples required is reduced.

Ground motion intensity measure optimization method for seismic response prediction

A multifunctional electric recirculating ball steering system for commercial vehicles and its control method are described. The system comprises three modules: an electric power module, a mechanical transmission module, and a control module. The system introduces a dual-rotor motor and a common power motor, working together to act on the input end of a recirculating ball steering gear. The dual-rotor motor offers high redundancy, increased output torque, and improved reliability for control-by-wire operations. A fork assembly enables synchronous and asynchronous rotation of the dual rotors, achieving both steer-by-wire and electric power steering functions. Leveraging the high reduction ratio capability of the recirculating ball steering gear maximizes power torque and simplifies the system architecture while ensuring reliability in both traditional control and control-by-wire functionalities.

Multifunctional electric recirculating ball steering system for commercial vehicles and control method thereof

The present application relates to a method for preparing trifluridine, comprising reacting a compound of formula III with a compound of formula IV in a first solvent in the presence of an acid to obtain a compound of formula II, and performing further reaction to obtain trifluridine.

Method for preparing trifluridine

Provided is an underwater repair system for a cavity region of a concrete panel rock-fill dam panel, including a moving platform, a work cabin, a pressure drainage apparatus, a traction apparatus, and a positioning apparatus; the traction apparatus controlling the movement of the moving platform on the surface of a dam concrete panel; the positioning apparatus transmits a detection position; the work cabin is a pressure cabin, the work cabin being connected to the pressure drainage apparatus, and a drill apparatus and grouting apparatus being arranged in the work cabin; the moving platform moves into the cavity region, and the pressure drainage apparatus starts up to drain the water in the work cabin, a partially closed waterless space being formed inside the work cabin, the drill apparatus drilling the concrete panel at the upper end of the cavity region and the grouting apparatus subsequently implementing grouting to complete the repair.

Underwater repair system for cavity region of concrete panel rock-fill dam panel

Provided are crystal forms A, B, D, E, F, G and H of valsartan disodium salt and a preparation method therefor.

Crystal forms of valsartan disodium salt

An automatic tensioning system for strengthening a beam, a slab and a column by a pre-stressed FRP plate comprises a tensioning end anchor (), a fixed end anchor (), and a tensioning bracket () connected to the tensioning end anchor (). A centre-hole jack () is provided in the middle of the tensioning bracket (), a threaded rod () passes through the tensioning bracket () and is then connected to the centre-hole jack (), and an upper toothed nut () and a lower toothed nut () respectively driven by a driving mechanism are provided on two sides of the tensioning bracket () on the threaded rod (). A binary clip-type fixture () is further comprised, an upper surface thereof is provided with a cylinder (), and a sleeve () nested outside the cylinder () is connected to the threaded rod ().

Automatic tensioning system and method for strengthening beam, slab and column by pre-stressed FRP plate

Provided are new crystalline forms A, B, C, D and E of sacubitril sodium salt and a method for preparation thereof, pharmaceutical compositions thereof, and application thereof in preparing drugs for enkephalinase-related diseases.

Crystalline form of sacubitril sodium salt

A steel-fiber reinforced polymer (FRP) composite material reinforced concrete column comprises an inner steel pipe arranged in the center, wherein the inner steel pipe is internally provided with an unbonded steel strand; the outside of the inner steel pipe is provided with an outer steel pipe, concrete is poured between the inner steel pipe and the outer steel pipe, a plurality of additional small steel pipes are evenly arranged outside the outer steel pipe, and each of the additional small steel pipes is internally provided with an additional unbonded steel strand. A composite bar cage coaxial with the outer steel pipe and arranged on the outside thereof is also provided, wherein both the outer steel pipe and the composite bar cage are covered by high-ductility concrete, and at a core area, the outside of the high-ductility concrete is wrapped with an anti-spalling layer.

Steel-fiber composite material concrete combined column, and post-earthquake repair method thereof

A concrete structure member strengthened with prestressed FRP elements includes a concrete structure body and a prestressed FRP element arranged on the former. An epoxy resin overlay surrounding the prestressed FRP element is provided to wrap it up, and a polymer concrete supplemental layer is provided outside the epoxy resin overlay. The concrete structure member can uniformly and effectively transfer the stress from the prestressed FRP element.

Concrete structure member strengthened with prestressed FRP elements

A mold and a method for integrally manufacturing a functional cored slab and a solid slab with a polygonal grid honeycomb structure. The mold for manufacturing the cored slab comprises a female mold and multiple male molds which are provided in the female mold. The male molds include polygonal cylinders capable of melting, dissolving, or vaporizing. A clearance exists between at least one pair of adjacent polygonal cylinders. The mold for manufacturing the solid slab is provided with a male mold main-body of polygonal cylinders which share the same shape and amount as the polygonal grids. The male mold main-body, which is made of one of the functional materials including sound insulating materials, flame retardant materials, and thermal insulating materials, is located in the frame-like female mold having a bottom plate. Clearances are provided between the adjacent male mold bodies. A casting method is adopted when manufacturing the slabs.

Mold and method for integrally manufacturing functional cored slab and solid slab with polygonal grid honeycomb structure

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Nanjing, China

Gang Wu