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| 1 | Supersonic flow in the second-throat ejector-diffuser system 显示文摘 | Falin Chen Liu C F Yang J Y | 1994 | Journal of Spacecraft and Rockets1994，31，1： | 1 |
| 2 | A bull-heading water control technique of thermo-sensitive temporary plugging agent显示文摘Aimed at the disadvantages of secondary damage to oil layers caused by the conventional bull-heading water control technique, a thermo-sensitive temporary plugging agent for water control was synthesized by water solution polymerization and applied in the field with a new secondary temporary plugging technique. The optimization and performance evaluation of thermo-sensitive temporary plugging agent were carried out through laboratory experiments. The optimized formula is as follows:(6%-8%) acrylamide +(0.08%-0.12%) ammonium persulfate +(1.5%-2.0%) sepiolite +(0.5%-0.8%) polyethylene glycol diacrylate. The thermo-sensitive temporary plugging agent is suitable for formation temperatures of 70-90 ?C, it has high temporary plugging strength(5-40 k Pa), controllable degradation time(1-15 d), the apparent viscosity after degradation of less than 100 m Pa?S and the permeability recovery value of simulated cores of more than 95%. Based on the research results, secondary temporary plugging technique was used in a horizontal well in the Jidong Oilfield. After treatment, the well saw a drop of water cut to 27%, and now it has a water cut of 67%, its daily increased oil production was 4.8 t, and the cumulative oil increment was 750 t, demonstrating that the technique worked well in controlling water production and increasing oil production. | LIU Pingde WEI Falin ZHANG Song ZHU Xiuyu WANG Longfei XIONG Chunming | 2018 | Petroleum Exploration and Development2018，45，3： | 0 |
| 3 | Development of Digital Multi-function Dendrometer显示文摘Multi-functional dendrometer is a kind of forestry tool that can measure multiple factors of forest.By combining sensor technology and computer technology,a digital multi-function dendrometer has been developed,which integrated the functions of measuring height,distance,azimuth, slope,elevation,form quotient of any parts of the stem into one body at the same test.The dendrometer can fit the complex forest environment,solve the difficult problems in aspects of plant height,measure distance,central diameter and form quotient of breast height.The accuracy can meet the requirements of general forest survey. | Liu Falin Zeng Siqi Yan Qianfei Wang Long Hong Lingfei | 2012 | Chinese Forestry Science and Technology2012，11，3： | 0 |
| 4 | Modeling and Decoupling of Coupling Tasks in Collaborative Development Process of Complicated Electronic Products显示文摘It is important to improve the development efficiency of decoupling a coupling task package according to the information relevancy relation between development tasks in the collaborative development process of complicated electronic products.In order to define the task coupling model in the development process,the weighted directed graph based on the information relevancy is established,and the correspondence between weighted directed graph model and numerical design structure matrix model of coupling tasks is introduced.The task coupling model is quantized,thereby the interactivity matrix of task package is built.A multi-goal task decoupling method based on improved genetic algorithm is proposed to decouple the task coupling model,which transforms the decoupling of task package into a multi-goal optimization issue.Then the improved genetic algorithm is used to solve the interactivity matrix of coupling tasks.Finally,the effectiveness of this decomposition method is proved by using the example of task package decoupling of collaborative development of a radar’s phased array antenna. | WANG Xiaofei LIAO Wenhe GUO Yu WANG Falin PAN Zhihao LIU Daoyuan | 2019 | Transactions of Nanjing University of Aeronautics and Astronautics2019，36，5： | 0 |
| 5 | Formation of the Devonian Fengtai Hydrothermal Brine Basin and the Metallogeny of Gold and Lead-Zinc Mineralizations in Shaanxi显示文摘The study of the relationships between the hydrothermal sedimentary formations and the gold andlead-zinc mineralizations in the Devonian Fengtai basin in Shaanxi shows that there was a hydrothermal brine sedimentary event which was inserted into the normal sedimentary background from the late Middle Devonian to the early Late Devonian. This event is closely related to gold and lead-zinc mineralizations in this area. | ZHU Huaping GUO Jian LIU Ping LI Falin HUANG Changqing | 2000 | Acta Geologica Sinica(English Edition)2000，74，3： | 0 |
| 6 | Challenges and improvement in management of neonates born to mothers with COVID-19 in China显示文摘Objective:China was the first country suffering from the SARS-CoV-2 pandemic and one of the countries with stringent mother-neonate isolation measure implemented.Now increasing evidence suggests that coronavirus disease 2019(COVID-19)should not be taken as an indication for formula feeding or isolation of the infant from the mother.Methods:We conducted a retrospective cohort study in 44 hospitals from 14 provinces in China to investigate the management of neonates whose mothers have confirmed or suspected COVID-19.In addition,65 members of Chinese Neonatologist Association(CNA)were invited to give their comments and suggestions on the clinical management guidelines for high-risk neonates.Results:There were 121 neonates born to 118 mothers suspected with COVID-19 including 42 mothers with SARS-CoV-2 positive results and 76 mothers with SARS-CoV-2 negative results.All neonates were born by caesarean section,isolated from their mothers immediately after birth and were formula-fed.Five neonates were positive for SARSCoV-2 at initial testing between 36 and 46 h after birth.Regarding the confusion on the clinical management guidelines,58.78%of the newborns were put into isolation,32.22%were subject to PCR tests,and 5.16%and 2.75%received breastfeeding and vaccination,respectively.Conclusion:The clinical symptoms of neonates born to mothers with confirmed SARS-CoV-2 were mild,though five neonates might have been infected in utero or during delivery.Given the favorable outcomes of neonates born to COVID-confirmed mothers,full isolation may not be warranted.Rather,separation of the mother and her newborn should be assessed on a case-by-case basis,considering local facilities and risk factors for adverse outcomes,such as prematurity and fetal distress. | Jie Yang Zhuxiao Ren Lingkong Zeng Shiwen Xia Lin Wang Jiayu Miao Zhe Zhao Chuanzhong Yang Xiuyong Cheng Huayan Zhang Yuanfang Zhu Li Liu Xirong Gao Bin Yi Zhenlang Lin Wei Liu Xiaoyu Zhou Benqing Wu Ling Chen Zhankui Li Xuefeng Zhang Wei Lu Lianhong Zhang Xiao Chen Xiaoyun Zhong Falin Xu Jinhui Wu Yong Ji Jiahua Pan Yanxiang Chen Carine Ronsmans Zhichun Feng | 2022 | Frigid Zone Medicine2022，2，2： | 0 |
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