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Moisture diffusion behavior of permeable fiber-reinforced polymer composite
Jianjiang YANG, Qingsheng YANG, Lianhua MA, Wei LIU,
《机械工程前沿(英文)》 2010年 第5卷 第3期 页码 347-352 doi: 10.1007/s11465-010-0093-y
关键词: fiber-reinforced biopolymer effective diffusion coefficient unit cell finite element modeling (FEM)
Wen XUE, Weiliang JIN, Hiroshi YOKOTA,
《结构与土木工程前沿(英文)》 2010年 第4卷 第3期 页码 348-353 doi: 10.1007/s11709-010-0077-3
关键词: durability effective diffusion coefficient steady-state migration test
Diagnosis method based on wavelet coefficient scale relativity correlation dimension for fault
GU Junjie, TIAN Jin, PENG Xuezhi
《能源前沿(英文)》 2008年 第2卷 第2期 页码 164-168 doi: 10.1007/s11708-008-0031-4
关键词: effective technology monitoring mechanical equipment relativity Correlation
Yurong ZHANG, Shengxuan XU, Yanhong GAO, Jie GUO, Yinghui CAO, Junzhi ZHANG
《结构与土木工程前沿(英文)》 2020年 第14卷 第6期 页码 1509-1519 doi: 10.1007/s11709-020-0681-9
关键词: permeability microstructure NMR MIP X-CT
Coulomb-type solutions for passive earth pressure with steady seepage
WANG Junjie, CHAI Hejun, LIN Xin, XU Jiamei
《结构与土木工程前沿(英文)》 2008年 第2卷 第1期 页码 56-66 doi: 10.1007/s11709-008-0001-2
关键词: function coefficient Coulomb-type effective friction different drainage
基于修正氯离子扩散理论模型和海洋大数据的中国北方海洋混凝土结构工程服役寿命设计 Article
冯滔滔, 余红发, 谭永山, 麻海燕, 许梅, 岳承军
《工程(英文)》 2022年 第17卷 第10期 页码 123-139 doi: 10.1016/j.eng.2021.03.030
本研究通过试验研究和海洋工程耐久性参数大数据集的调研,明确了中国北方海洋工程耐久性设计参数的取值、范围和分布类型。基于修正的氯离子扩散理论模型和可靠性理论,计算了浪溅区、潮汐区和水下区混凝土结构的服役寿命。设计了满足100 年或120 年服役寿命要求的混凝土配合比,并提出了保护层厚度要求。此外,对比了边界条件(Cs)和扩散系数(Df)的不同时变关系对服役寿命的影响,结果表明,本研究采用的时变关系(即Cs持续增加后保持稳定,Df持续降低后保持稳定)对于海洋环境下混凝土结构的耐久性设计具有有利效应。
Arunkumar JAYAKUMAR
《能源前沿(英文)》 2019年 第13卷 第2期 页码 325-338 doi: 10.1007/s11708-019-0618-y
关键词: PEM fuel cell gas diffusion electrode(GDE) gas diffusion layer(GDL) membrane electrode assembly durability fuel cell catalyst
Coupled diffusion of chloride and other ions in saturated concrete
Nattapong DAMRONGWIRIYANUPAP, Linyuan LI, Yunping XI
《结构与土木工程前沿(英文)》 2011年 第5卷 第3期 页码 267-277 doi: 10.1007/s11709-011-0112-z
关键词: diffusion chloride concrete Nernst-Planck equation durability
张洪亮
《中国工程科学》 2012年 第14卷 第4期 页码 62-64
大庆西部外围地区特低渗透扶余油层具有埋藏深、厚度薄、砂体零散的特点,针对首次注水开发的特低渗透油田注水井吸水能力差、难以有效开发动用的实际,在搞清该区块微观特征的基础上,为确保特低渗透储层达到建立有效驱替,“注够水、注好水”的目的,经过反复理论研究和论证,提出了单井增压注水试验,现场应用后注水井能够完成配注,周围油井明显见到增油效果,实现了特低渗透储层有效驱替。利用无源微地震和同位素监测资料分析,改善了吸水状况,缓解了层间矛盾,储层动用程度得到提高。随注水压力升高降低,注水波及区范围随之升高、降低,增压注
Experimental study of humid air reverse diffusion combustion in a turbulent flow field
GE Bing, ZANG Shusheng, GU Xin
《能源前沿(英文)》 2007年 第1卷 第4期 页码 428-434 doi: 10.1007/s11708-007-0062-6
关键词: propane/humid propane/air turbulent bluff-body turbulent diffusion
Preparation of a Pb loaded gas diffusion electrode and its application to CO
Ang LI, Hua WANG, Jinyu HAN, Li LIU
《化学科学与工程前沿(英文)》 2012年 第6卷 第4期 页码 381-388 doi: 10.1007/s11705-012-1216-2
关键词: electroreduction carbon dioxide lead catalyst gas diffusion electrode formic acid
evaluation of renal function using diffusion weighted imaging and diffusion tensor imaging in type 2
null
《医学前沿(英文)》 2014年 第8卷 第4期 页码 471-476 doi: 10.1007/s11684-014-0365-8
This work aims to estimate the value of diffusion weighted imaging (DWI) and diffusion tensor imaging (DTI) in detecting early-stage kidney injury in type 2 diabetic patients with normoalbuminuria (NAU) versus microalbuminuria (MAU) prospectively. A total of 30 T2DM patients with normal kidney function were recruited and assigned to the NAU group (n = 14) or MAU group (n= 16) according to 8 h overnight urinary albuminuria excretion rate (AER) results. A contemporary cohort of health check-up recipients were included as controls (n = 12). DWI and DTI scans were performed on bilateral kidney using SE single-shot EPI, and apparent diffusion coefficient (ADC) and fractional anisotropy (FA) of the renal parenchyma was determined from ADC and FA maps of the three groups. ADC and FA values were compared among the three groups. According to DWI with a b value of 400 s/mm2, the MAU and NAU groups showed significantly lowered mean ADC values compared with the healthy controls (P<0.01). The mean ADC in the MAU group [(2.22±0.07)×10–3 mm2/s] was slightly lower than that of the NAU group [(2.31±0.22)×10–3 mm2/s], but this difference was not statistically significant (P>0.05). The FA value in the MAU group was higher than that in the control group (0.45±0.07 vs. 0.39±0.03, P = 0.004) but did not differ from that in the NAU group (0.42±0.03) (P>0.05). ADC and FA values may be more sensitive than urine AER in reflecting early-stage kidney injury and, hence, may facilitate earlier detection and quantitative evaluation of kidney injury in T2DM patients. Combined evaluation of ADC and FA values may provide a better quantitative approach for identifying diabetic nephropathy at early disease stages.
关键词: type 2 diabetes mellitus microalbuminuria diffusion weighted imaging diffusion tensor imaging early-stage kidney injury
Krishnendu BHATTACHARYYA, G. C. LAYEK
《化学科学与工程前沿(英文)》 2011年 第5卷 第4期 页码 471-476 doi: 10.1007/s11705-011-1130-z
关键词: slip flow MHD boundary layer reactive solute diffusion flat plate suction/injection
Molecular diffusion in ternary poly(vinyl alcohol) solutions
《化学科学与工程前沿(英文)》 2022年 第16卷 第6期 页码 1003-1016 doi: 10.1007/s11705-021-2121-3
关键词: fluorescence correlation spectroscopy poly(vinyl alcohol) anomalous diffusion crowding effects dynamic light scattering binding effects rhodamine B
Reaction kinetics and internal diffusion of Zhundong char gasification with CO
Yun Liu, Jiangyuan Qu, Xuehui Wu, Kai Zhang, Yuan Zhang
《化学科学与工程前沿(英文)》 2021年 第15卷 第2期 页码 373-383 doi: 10.1007/s11705-020-1949-2
关键词: coal char CO2 gasification internal diffusion pore evolution
标题 作者 时间 类型 操作
Moisture diffusion behavior of permeable fiber-reinforced polymer composite
Jianjiang YANG, Qingsheng YANG, Lianhua MA, Wei LIU,
期刊论文
Influence of initial curing conditions and exposure environments on chloride migration in concrete using electrochemical method
Wen XUE, Weiliang JIN, Hiroshi YOKOTA,
期刊论文
Diagnosis method based on wavelet coefficient scale relativity correlation dimension for fault
GU Junjie, TIAN Jin, PENG Xuezhi
期刊论文
Correlation of chloride diffusion coefficient and microstructure parameters in concrete: A comparative
Yurong ZHANG, Shengxuan XU, Yanhong GAO, Jie GUO, Yinghui CAO, Junzhi ZHANG
期刊论文
Coulomb-type solutions for passive earth pressure with steady seepage
WANG Junjie, CHAI Hejun, LIN Xin, XU Jiamei
期刊论文
A comprehensive assessment on the durability of gas diffusion electrode materials in PEM fuel cell stack
Arunkumar JAYAKUMAR
期刊论文
Coupled diffusion of chloride and other ions in saturated concrete
Nattapong DAMRONGWIRIYANUPAP, Linyuan LI, Yunping XI
期刊论文
Experimental study of humid air reverse diffusion combustion in a turbulent flow field
GE Bing, ZANG Shusheng, GU Xin
期刊论文
Preparation of a Pb loaded gas diffusion electrode and its application to CO
Ang LI, Hua WANG, Jinyu HAN, Li LIU
期刊论文
evaluation of renal function using diffusion weighted imaging and diffusion tensor imaging in type 2
null
期刊论文
Magnetohydrodynamic slip flow and diffusion of a reactive solute past a permeable flat plate with suction
Krishnendu BHATTACHARYYA, G. C. LAYEK
期刊论文