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Spreading Injection Molding Technology Is the Requirement of Social Development （Part 2）

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橡塑机械时代 2008年第6期20卷 1-4页

作者： dai Fulai

RGD Gifted PDLLA-PRGD Conduits Promotes the Sciatic Nerve Regeneration

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Journal of Wuhan University of Technology(Materials Science) 2014年第3期29卷 620-625页

作者：方晓青邱彤 XIE Lijuan YIN Yixia LI Binbin YAN Qiongjiao dai Honglian WANG Xinyu LI Shipu Department of Paediatrics Wuhan General Hospital of Guangzhou Military Biomedical Materials and Engineering Center Wuhan University of Technology State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology

Schwann cells play a key role in peripheral nerve growth and regeneration. The aim of this study was to evaluate the effects of RGD peptides on Schwann cell behavior, and to identify the effects of the modified PDLLA films with RGD in vivo. The results revealed that RGD coating with the concentration of 100-500 ug/mL promoted the cell proliferation and boosted the cell migration. Molecularly, RGD coating also enhanced the expression of the proliferation related genes （c-fos and c-jun） and the cell behavior related genes （actin, tublin, tau and MAP1） at first stages of the seeding, which is similar to the effects from laminin coating. In vivo, RGD addition improved the recovery efficiency of the transected nerve in regard of the more survived Schwann cells in vivo and the formation of more mature myelin sheath. Taken together, RGD peptides are good candidates to enhance the biocompatibility of the biomaterials and facilitate the peripheral nerve regeneration by prompting responses in Schwann ceils.

关键词： ROD Schwann cells cell behavior PDLLA-PRGD conduit sciatic nerve regeneration

The Conditions Are Already Ripe for Building an Innovative Industry in China＇s Rubber Industry

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橡塑机械时代 2008年第7期20卷 1-3页

作者： dai Fulai

Choice of Equipment for Large Engineering Tire Curing Process

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橡塑机械时代 2008年第6期20卷 15-17页

作者： dai Fulai

Investigation and Analysis of Wetland Distribution in Jinggu County, Yunnan Province

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Journal of Landscape Research 2016年第3期8卷 70-72页

作者： dai Jiping College of Arts and Sciences Yunnan Normal University

Through investigating wetland resources in Jinggu County, spatial distribution, type and area of wetland in Jinggu County, as well as its animal resources were fi gured out and analyzed systematically. Major threats that the local wetland resources are faced with were summarized, and corresponding strategies for the protection and sustainable development of the wetland resources were proposed to provide useful references for the distribution of wetland resources in the county.

关键词： Wetland Status quo Investigation Analysis

Statistical Properties of Alfvén Ion Cyclotron Waves and Kinetic Alfvén Waves in the Inner Heliosphere

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Research in Astronomy and Astrophysics 2023年第9期23卷 341-350页

作者： Chang Sun Lei Yang Qiu-Huan Li Cun-Li dai Jian-Ping Li Zheng-Wei Cheng De-Jin Wu Key Laboratory of Planetary Sciences Purple Mountain ObservatoryCASNanjing 210023China School of Astronomy and Space Sciences University of Science and Technology of ChinaHefei 230026China State Key Laboratory of Space Weather National Space Science CenterCASBeijing 100190China Institute of Space Physics Luoyang Normal UniversityLuoyang 471934China Henan Key Laboratory of Electromagnetic Transformation and Detection Luoyang Normal UniversityLuoyang 471934China College of Sciences Nanjing Agricultural UniversityNanjing 210095China Key Laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryCASNanjing 210023China

Alfvén ion cyclotron waves(ACWs)and kinetic Alfvén waves(KAWs)are found to exist at<0.3 au observed by Parker Solar Probe in Alfvénic slow solar *** examine the statistical properties of the background parameters for ACWs and KAWs and related wave disturbances,both wave events observed by Parker Solar Probe are selected and *** results show that there are obvious differences in the background and disturbance parameters between ACWs and *** events have a relatively higher occurrence rate but with a total duration slightly shorter than KAW *** median background magnetic field magnitude and the related background solar wind speed of KAW events are larger than those of *** distributions of the relative disturbances of the proton velocity,proton temperature,the proton number density,andβcover wider ranges for ACW events than for KAW *** results may be important for the understanding of the nature and characteristics of Alfvénic slow solar wind fluctuations at ion scales near the Sun,and provide the information of the background field and plasma parameters and the wave disturbances of ACWs and KAWs for further relevant theoretical modeling or numerical simulations.

关键词： (Sun )solar wind-plasmas-waves-methods statistical

Preparation and performance evaluation of the slickwater using novel polymeric drag reducing agent with high temperature and shear resistance ability

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Petroleum Science 2024年第2期21卷 1113-1121页

作者： Ming-Wei Zhao Zhen-Feng Ma Cai-Li dai WeiWu Yong-Quan Sun Xu-Guang Song Yun-Long Cheng Xiang-Yu Wang National Key Laboratory of Deep Oil and Gas China University of Petroleum(East China)Qingdao266580ShandongChina Shandong Key Laboratory of Oilfield Chemistry China University of Petroleum(East China)Qingdao266580ShandongChina Sinopec Shengli Oilfield Dongying257001ShandongChina Department of Chemical and Materials Engineering University of AlbertaEdmontonAB T6G 1H9Canada East China Petroleum Bureau of Sinopec Nanjing210011JiangsuChina

Slickwater fracturing fluids are widely used in the development of unconventional oil and gas resources due to the advantages of low cost,low formation damage and high drag reduction ***,their performance is severely affected at high *** reducing agent is the key to determine the drag reducing performance of *** this work,in order to further improve the temperature resistance of slickwater,a temperature-resistant polymeric drag reducing agent(PDRA)was synthesized and used as the basis for preparing the temperature-resistant *** slickwater system was prepared with the compositions of 0.2 wt%PDRA,0.05 wt%drainage aid nonylphenol polyoxyethylene ether phosphate(NPEP)and 0.5 wt%anti-expansion agent polyepichlorohydrindimethylamine(PDM).The drag reduction ability,rheology properties,temperature and shear resistance ability,and core damage property of slickwater were systematically studied and *** contrast to on-site drag reducing agent(DRA)and HPAM,the temperature-resistant slickwater demonstrates enhanced drag reduction efficacy at 90℃,exhibiting superior temperature and shear resistance ***,the drag reduction retention rate for the slickwater achieved an impressive 90.52%after a 30-min shearing ***,the core damage is only 5.53%.We expect that this study can broaden the application of slickwater in high-temperature reservoirs and provide a theoretical basis for field applications.

关键词： Unconventional resources Polymeric drag reducing agent Slickwater High drag reduction rate Temperature resistance

Research on the Profession Development of College English teachers in Private University -- From the Perspective of Class Teaching

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International English Education Research 2015年第3期 137-140页

作者： dai Huili Zhengzhou University of Science and Technology No.1 Xueyuan Road Erqi District Zhengzhou City Henan province China 450064

Private University has been putting the development cultivate the integrated ability to make use of English is the final goal. goal on the applied talents. In terms ot college English teaching, to Meanwhile, the final goal also put forward the higher requirement for teacher＇s professional quality of class teaching. The article discussed the two issues, i.e. teaching skills and professional knowledge of college English teachers in private university. The author expects that the study can offer some valuable advice for the professional development of college English teachers in private university.

关键词： Private University College English Teachers Professional Development

The Effect of 2,5-hexanedione on Myelin Protein Zero Expression,and Its Mitigation Using Ginkgo Biloba Extract

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Biomedical and Environmental Sciences 2011年第4期24卷 374-382页

作者： ZHAO Lei LIU QingJun CHEN Hong DUAN HuaWei BIN Ping LIU Qing NIU Yong dai YuFei ZHENG YuXin National Institute for Occupational Health and Poison Control and Key laboratory of Chemical Safety and Health Chinese Center for Disease Control and Prevention Beijing 100050 China

Objective To investigate the role of myelin protein zero （P 0） in 2,5-hexanedione （2,5-HD）-induced peripheral nerve injury,and the protective effect of Ginkgo biloba extract （Egb761） on 2,5-HD-induced toxic peripheral *** After 4 weeks of treatment with 2,5-HD at different doses （50,100,200,400 mg/kg） in rats,changes in the levels of P 0 in rat sciatic nerves was investigated,and the effect of Egb761 on 2,5-HD-induced toxic peripheral neuropathy was *** The blood-nerve barrier （BNB） permeability of the sciatic nerve increased,and the expression of P 0 mRNA and P 0 protein decreased in a dose-dependent manner after treatment with 2,5-HD for 4 *** with Egb761 protected against BNB interruption,and inhibited P 0 mRNA and protein reduction during 2,5-HD *** with Egb761 significantly reduced loss of body weight （P0.01） and mitigated gait abnormalities （2.85±0.22） induced by 400 mg/kg 2,5-HD （P0.01）.It also reduced the signs of neurotoxicity induced by 2,*** 2,5-HD inhibited the expression of P 0 in a dose-dependent manner,and this may be an important mechanism by which toxic peripheral neuropathy is induced by 2,***761 has a protective effect against 2,5-HD-induced peripheral neurotoxicity in rats.

关键词： Myelin protein zero 2 5-hexanedione Ginkgo biloba extract