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42篇 您的检索式:作者名="Jiepeng"
    题名 作者 年代 出处 被引量
1Scalable preparation of porous silicon nanoparticles and their application for lithium-ion battery anodes显示文摘Mingyuan Ge Jiepeng Rong Xin Fang Anyi Zhang Yunhao Lu Chongwu Zhou 2013Nano Research2013,6,3:16
2Danggui Buxue Tang ameliorates bleomycin-induced pulmonary fibrosis in rats through inhibiting transforming growth factor-β1/Smad3/plasminogen activator inhibitor-1 signaling pathway显示文摘OBJECTIVE: To investigate the effect of Danggui Buxue Tang(DBT), a decoction from Traditional Chinese Medicine, on bleomycin-induced pulmonary fibrosis in rats, and to propose the possible underlying mechanism.METHODS: Forty male Sprague-Dawley rats were randomly divided into sham group, model group,prednisone group and DBT group. Pulmonary fibrosis rat model was established by intratracheal injection with bleomycin. Body weight and lung index were monitored. Histopathologic examination and collagen deposition were determined using Hematoxylin and eosin(HE) and Masson's trichrome staining. Immunohistochemistry staining was applied to observe the expression of alpha-smooth muscle actin(α-SMA). m RNA expression of α-SMA,collagen Ⅰ and collagen Ⅲ were measured by realtime fluorescence quantitative PCR(RT-q PCR). Inflammatory cytokines, including tumor necrosis factor alpha(TNF-α), interleukin-6(IL-6) and IL-1β in serum were detected by Enzyme-linked immunosorbent assay. Alkali hydrolysis method was conducted to investigate the content of hydroxyproline(HYP). Transforming growth factor-β1(TGF-β1),Smad3 and plasminogen activator inhibitor-1(PAI-1) protein level were examined by Western blot assay.RESULTS: DBT significantly reduced the severity of bleomycin-induced pulmonary fibrosis and inflammation as indicated by minimizing the lost of weight, and by lowering the levels of lung index, inflammation score, Ashcroft score, collagen volume fraction(%), HYP, α-SMA, collagen Ⅰ, collagen Ⅲ,TNF-α, IL-6, IL-1β, TGF-β1, Smad3 and PAI-1, consistent with the effect of prednisone.CONCLUSION: Our findings suggest that DBT is able to ameliorate the pulmonary fibrosis, the possible mechanism may involve inhibition of pulmonary inflammation and collagen deposition, possibly via suppressing TGF-β1/Smad3/PAI-1 signaling pathway.Wang Jiepeng Fang Chaoyi Wang Shaoxian Fang Fang Chu Xinqiao Liu Na Lu Chenxi Wang Shuo Li Wei 2020Journal of Traditional Chinese Medicine2020,40,2:5
3Seismic behavior of thin-walled circular and stiffened square steel tubed-reinforced-concrete columns显示文摘Steel tubed-reinforced-concrete(TRC) columns have been gradually used in the construction of high-rise buildings recently because of their high axial load-carrying capacities and excellent seismic behavior. Existing studies about their seismic behavior were focused on columns with relatively thick tubes, i.e., diameter-to-thickness/width-to-thickness(D/t) ratios were below 100,while little is known about thin-walled TRC columns, especially for square TRC columns. Considering the infilled concrete of square TRC columns is non-uniformly and non-effectively confined, accordingly, stiffened square TRC columns are usually adopted in practice. Thus, two thin-walled circular TRC columns(D/t=120) and two stiffened square ones with diagonal stiffeners in plastic hinge regions(D/t=106) were tested under a constant axial compression combined with cyclic lateral loading.Both the circular and stiffened square TRC columns had the same cross sectional area, tube thickness, reinforcing bar ratio and column height. Flexural failure occurred for all the four specimens. Test results showed the strengths of the stiffened square TRC columns were a little higher in comparison to their circular counterparts; the ductility and energy dissipation capacities were excellent for both the stiffened and circular TRC columns, indicating very good confinement was gained from the yielded steel tubes of the plastic hinge regions at the peak loads. And shear stresses(35–90 MPa) in the sheared plates showed their moderate contribution of carrying lateral loads. Finally, cross sectional capacity analysis results demonstrated the method for TRC columns is acceptable for the stiffened square TRC columns.GAN Dan ZHOU XuHong LIU JiePeng LI Jiang 2019Science China(Technological Sciences)2019,62,3:3
4Numerical study on effects of the cofferdam area in liquefied natural gas storage tank on the leakage and diffusion characteristics of natural gas显示文摘The leakage and diffusion characteristics of natural gas were investigated in the condition of the leakage of liquefied natural gas(LNG) in the storage tank.Fluent was adopted to simulate the process in a series of three-dimension unsteady state calculations.The effects of different heights of the cofferdam(1.0 m, 2.0 m and 3.0 m),wind directions,ambient temperature,leakage location,leakage volume on the diffusion process of natural gas were investigated.The diffusion characteristics of the natural gas clouds over cofferdam were found.Under windless condition,when the gas clouds met,the gas clouds rose due to the collision,which made them easier to cross the cofferdam and spread out.The higher the ambient temperature was,the higher the gas concentration around the cofferdam was,and the smaller the gas concentration difference was.When the leakage occurred,the higher coffe rdam was more beneficial to delay the outward diffusion of gas clouds.However,when the leaka ge stopped,the higher cofferdam went against the dissipation of gas clouds.Under windy condition,the time to form stable leakage flow field was faster than that of windless,and the lower cofferdam further reduced this time.Therefore,considering the effect of barrier and dissipation,it was suggested that the rational height of cofferdam should be designed in the range of 1.0 m to 2.0 m.In case of emergency,the leakage of gas should be deduced reasonably by combining the measurement of gas concentration with the rolling of gas clouds.When windless,the leakage area should be entered between the overflows of gas clouds.Zirong Lin Shuangfeng Wang Shuxun Fu Jiepeng Huo 2021Chinese Journal of Chemical Engineering2021,34,1:2
5Preparation and toxicity evaluation of a novel nattokinase-tauroursodeoxycholate complex显示文摘Nattokinase(NK), which has been identified as a potent fibrinolytic protease, has remarkable potential in treatment of thrombolysis, and even has the ability to ameliorate chronic vein thrombosis. To reduce the hemorrhagic risk from an intravenous injection of NK,nattokinase-tauroursodeoxycholate(NK-TUDCA) complex was prepared at different pH values and with different ratios of NK and TUDCA. When assessing survival time, survival state,tail injury, and the body weight of mice, it was found that the NK-TUDCA complex(NK: 10 k IU/ml; TUDCA: 10 mg/ml; pH 5.0) had a lower toxicity when administered at an NK dosage of 130 kIU/kg in the acute toxicity test and 13 kIU/kg in the repeated low-dose challenge. From the results of the in vitro thrombolytic test and characterization of NKTUDCA, we speculated that the delayed release of NK-TUDCA might be the main cause of toxicity reduction by the complex. This study described the preparation of an NK complex with low toxicity following intravenous administration, which could be utilized for further clinical study of NK.Rui Feng Jing Li Jiepeng Chen Lili Duan XinRong Liu Donghua Di Yihui Deng Yanzhi Song 2018Asian Journal of Pharmaceutical Sciences2018,13,2:2
6Seismic behavior and strength of tubed steel reinforced concrete (SRC) short columns显示文摘Xuhong Zhou Jiepeng Liu 2010Journal of Constructional Steel Research2010,,7:2
7Thermal expansion behaviors of Mn(Ⅱ)-pyridylbenzoate frameworks based on metal-carboxylate chains显示文摘Solvothermal reactions of MnCl2with pyridylbenzoic acids gave three-dimensional metal-carboxylate frameworks(MCFs),named MCF-34,MCF-43,and MCF-44,based on one-dimensional Mn-carboxylate chains.The crystal structure,stability,porosity,and framework flexibility of the new compound MCF-44 were studied in detail and compared with its analogs.Depending on their shapes and the bridging angles of the ligands,these compounds possess different network connectivities and porosities.Considering the pyridylbenzote ligands and Mn(II)ions as,respectively,3-and 6-connected nodes,they resemble either the anatase(ant)or rutile(rtl)polymorph of TiO2.Variable-temperature single-crystal X-ray diffraction studies revealed large thermal expansion coefficients for these compounds,which are probably related to the relatively flexible edge-sharing polyhedral structure of their Mn-carboxylate chains.Interestingly,the new compound MCF-44,with its highly porous rtl structure exhibits the largest thermal expansion coefficienct among the coordination polymers reported so far.ZHOU HaoLong Li Mian LI Dan ZHANG JiePeng CHEN XiaoMing 2014Science China Chemistry2014,57,3:2
8Axial load behavior and strength of tubed steel reinforced-concrete (SRC) stub columns 显示文摘Qi Hongtuo Guo Lanhui Liu Jiepeng 2011Thin-Walled Structures2011,,49:1
9Seismic behavior and shearstrength of tubed RC short columns显示文摘Xuhong Zhou Jiepeng Liu 2010Journal ofConstructional Steel Research2010,66,:1
10Seismic behavior and strength of square tube confined reinforced-concrete (STRC) columns 显示文摘Zhang Sumei Liu Jiepeng 2007Journal of Constructional Steel Research2007,63,9:1
11Seismic behavior and moment strength of tubed steel reinforced-concrete (SRC) beam-columns 显示文摘Dan Gan Lanhui Guo Jiepeng 2011Journal of Constructional Steel Research2011,67,:1
12Polychromatic-field-induced transparency and absorption in a three- levelA system显示文摘ZHANG Jiepeng XU Jun HERNANDEZ G 2007Phys Rev A2007,75,04:1
13Shear strength and behavior of tubed reinforced and steel reinforced concrete (TRC and TSRC) short columns显示文摘Jasim Ali Abdullah Zhang Sumei Liu Jiepeng 2009Thin-Walled Structures2009,,3:1
14双向弯矩作用下方钢管混凝土梁柱的抗震性能显示文摘对双向弯矩作用下方钢管混凝土梁柱的性能进行研究。进行了9个梁柱试验,加载为恒定轴向荷载和循环侧向荷载组合,加载范围由沿横截面轴线加载到对角线加载。为评估不同参数对结构整体反应、延性、耗能能力的影响,参数包括轴压比、宽厚比、混凝土抗压强度、长细比和弯矩强度计算中的荷载角。试验结果显示:双向加载的方钢管混凝土柱的延性和耗能能力会随着轴压比和混凝土抗压强度的增加而减小,但是延性几乎不受荷载角的影响。双向加载方钢管混凝土柱荷载角的增加会导致弯矩承载力的轻微减少。采用EC4和AIJ规范预测试验中的弯矩承载力都比较准确,其中根据AIJ算出的数值略为保守。另外,根据LRFD规范算出的数值极大地低估了其弯矩承载力。Jiepeng Liu, Xuhong Zhou and Sumei Zhang 2009钢结构2009,,1:1
15Be-havior and strength of circular tube confined reinforced-concrete (CTRC) columns 显示文摘Jiepeng Liu Sumei Zhang Xiaodong Zhang 2009Journal of Construc-tional Steel Research2009,65,7:1
16Seismic behavior and moment strength of tubed steel reinforced-concrete (SRC) beam-columns 显示文摘GAN DAN GUO LANHUI LIU JIEPENG 2011Journal of Constructional Steel Research2011,67,10:1
17Axial Load Behavior and Strength of Tubed Steel Reinforced-Concrete (SRC) Stub Col- umns显示文摘Qi Hongtuo Guo Lanhui Liu Jiepeng 2011Thin-Walled Structures2011,49,:1
18Seismic behavior and moment strength of tubed steel reinforced-concrete (SRC) beam-columns显示文摘Dan Gan Lanhui Guo Jiepeng Liu Xuhong Zhou 2011Journal of Constructional Steel Research2011,,10:1
19Axial load behavior and strength of tubed steel reinforced-concrete (SRC) stub columns显示文摘Hongtuo Qi Lanhui Guo Jiepeng Liu Dan Gan Sumei Zhang 2011Thin-Walled Structures2011,,9:1
20Seismic behavior and strength of square tube confined reinforced-concrete (STRC) columns 显示文摘Zhang Sumei Liu Jiepeng 2007Journal of Constructional Steel Research2007,63,9:1
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