检索范围:
排序: 展示方式:
Jian GONG
《工程管理前沿(英文)》 2017年 第4卷 第1期 页码 106-109 doi: 10.15302/J-FEM-2017001
关键词: super-high-rise building green building integral steel platform formwork system large volume concrete concrete pumped for super-high building deep and large foundation pit combined anterograde and retrograde methods digitalized construction technology
Destructive and non-destructive evaluation of concrete for optimum sand to aggregate volume ratio
《结构与土木工程前沿(英文)》 2021年 第15卷 第6期 页码 1400-1414 doi: 10.1007/s11709-021-0779-8
关键词: aggregates non-destructive testing sand-to-aggregate volume ratio (s/a) maximum aggregate size (MAS)
Yongtao LI, Christina L. MCCARTY, Ed J. GEORGE
《环境科学与工程前沿(英文)》 2011年 第5卷 第3期 页码 417-425 doi: 10.1007/s11783-011-0310-x
关键词: automated solid-phase extraction programmed-temperature vaporization large-volume injection gas chromatography/mass spectrometry semi-volatile organic compounds water analysis
《结构与土木工程前沿(英文)》 2023年 第17卷 第3期 页码 411-428 doi: 10.1007/s11709-023-0928-3
关键词: pre-stressed concrete sleeper ultrahigh performance fiber-reinforced concrete pull-out test static bending test steel fiber aspect ratio volume fraction
Features of seismic hazard in large dam projects and strong motion monitoring of large dams
Martin WIELAND,
《结构与土木工程前沿(英文)》 2010年 第4卷 第1期 页码 56-64 doi: 10.1007/s11709-010-0005-6
关键词: seismic hazard arch dam concrete face rockfill dam strong motion instrumentation reservoir-triggered seismicity Wenchuan earthquake
Yang Zhou, Phillip Choi
《化学科学与工程前沿(英文)》 2017年 第11卷 第3期 页码 440-447 doi: 10.1007/s11705-017-1626-2
关键词: molecular dynamics simulation amphiphilic block copolymer free volume water diffusivity fujita model
Damage identification of a large-span concrete cable-stayed bridge based on genetic algorithm
ZHU Jinsong, XIAO Rucheng
《结构与土木工程前沿(英文)》 2007年 第1卷 第2期 页码 170-175 doi: 10.1007/s11709-007-0018-y
关键词: accurate primary global stability complex identification
高治双,赵年全,赵常煜,胡明文,苟云龙
《中国工程科学》 2009年 第11卷 第1期 页码 26-31
以京沪高速铁路为工程背景,试验研究了矿物掺合料(粉煤灰、粉煤灰-矿粉)对混凝土工作性能、力学性能和耐久性能的影响以及大掺量矿物掺合料高性能混凝土的配制技术。结合实际工程,介绍了大掺量矿物掺合料高性能混凝土原材料选择、配合比设计、施工工艺等方面的控制技术。
关键词: 矿物掺合料 大掺量矿物掺合料高性能混凝土 配制与施工 质量控制
Xiang LI, Wenzheng ZHANG, Zhong HUANG, Dehao JU, Li HUANG, Mingzhi FENG, Xingcai LU, Zhen HUANG
《能源前沿(英文)》 2019年 第13卷 第3期 页码 483-493 doi: 10.1007/s11708-019-0631-1
关键词: marine engine natural gas methane turbulent jet ignition (TJI) pre-chamber
Computational model generation and RVE design of self-healing concrete
Md. Shahriar QUAYUM,Xiaoying ZHUANG,Timon RABCZUK
《结构与土木工程前沿(英文)》 2015年 第9卷 第4期 页码 383-396 doi: 10.1007/s11709-015-0320-z
关键词: homogenization self-healing concrete (SHC) representative volume element multiscale modelling
Qixiang FAN
《工程管理前沿(英文)》 2017年 第4卷 第2期 页码 231-237 doi: 10.15302/J-FEM-2017103
关键词: super-high arch dam intelligent construction mass concrete temperature control structure behavior control anti-erosion concrete low-heat portland cement large-discharge and high-velocity spillway tunnels large scale underground powerhouse green hydropower station sustainable development Xiluodu hydropower station
Assessment of liver volume variation to evaluate liver function
null
《医学前沿(英文)》 2012年 第6卷 第4期 页码 421-427 doi: 10.1007/s11684-012-0223-5
In order to assess the value of liver volumetry in cirrhosis and acute liver failure (ALF) patients, we explored the correlation between hepatic volume and severity of the hepatic diseases. The clinical data of 48 cirrhosis patients with 60 normal controls and 39 ALF patients were collected. Computed tomography-derived liver volume (CTLV) and body surface area (BSA) of normal controls were calculated to get a regression formula for standard liver volume (SLV) and BSA. Then CTLV and SLV of all patients were calculated and grouped by Child-Turcotte-Pugh classification for cirrhosis patients and assigned according to prognosis of ALF patients for further comparison. It turned out that the mean liver volume of the control group was 1 058±337 cm3. SLV was correlated with BSA according to the regression formula. The hepatic volume of cirrhosis patients in Child A, B level was not reduced, but in Child C level it was significantly reduced with the lowest liver volume index (CTLV/SLV). Likewise, in the death group of ALF patients, the volume index was significantly lower than that of the survival group. Based on volumetric study, we proposed an ROC (receiver operating characteristic) analysis to predict the prognosis of ALF patients that CTLV/SLV<83.9% indicates a poor prognosis. In conclusion, the CTLV/SLV ratio, which reflects liver volume variations, correlates well with the liver function and progression of cirrhosis and ALF. It is also a very useful marker for predicting the prognosis of ALF.
关键词: liver volume variation cirrhosis acute liver failure (ALF)
堆石混凝土坝概述及下一代混凝土坝施工技术展望 Review
Feng Jin, Duruo Huang, Michel Lino, Hu Zhou
《工程(英文)》 2024年 第32卷 第1期 页码 100-106 doi: 10.1016/j.eng.2023.09.020
Over the past few decades, one of the most significant advances in dam construction has been the invention of the rock-filled concrete (RFC) dam, which is constructed by pouring high-performance selfcompacting concrete (HSCC) to fill the voids in preplaced large rocks. The innovative use of large rocks in dam construction provides engineers with a material that requires less cement consumption and hydration heat while enhancing construction efficiency and environmental friendliness. However, two fundamental scientific issues related to RFC need to be addressed: namely, the pouring compactness and the effect of large rocks on the mechanical and physical properties of RFC. This article provides a timely review of fundamental research and innovations in the design, construction, and quality control of RFC dams. Prospects for next-generation concrete dams are discussed from the perspectives of environmental
friendliness, intrinsic safety, and labor savings.
关键词: Rock-filled concrete dam Pouring compactness Effect of large rocks Intelligent quality control Unmanned dam construction
赵文智,王红军,卞从胜,汪泽成,柳广弟
《中国工程科学》 2012年 第14卷 第6期 页码 31-39
低孔渗储层天然气资源是目前和未来一段时间我国天然气勘探和开发的主体,具有大型化成藏的特点。集中讨论了这类天然气资源大型化成藏的特征和分布规律,认识到成藏要素具有大型化发育与规模变化的特征,是天然气大型化成藏的基础;薄饼式、集群式成藏是天然气大型化成藏的主要样式;气源灶埋藏期规模“蓄能”和抬升期规模排气是大型化成藏重要气源输入;体积流和扩散流充注是天然气大型化成藏的主要运聚方式。低孔渗储层天然气藏的成藏分布具有近源性,成藏组合以大面积和大范围两种类型为主,成藏类型以地层—岩性圈闭为主,主要分布在海相克拉通盆地古隆起围斜区、陆内坳陷盆地广大斜坡区和向斜区以及前陆盆地缓翼斜坡等地区。低孔渗储层天然气资源大型化成藏认识的提出,提升了我国天然气资源发现潜力,扩展了勘探范围,为客观评价我国天然气主体资源总量和分布、推动有效发现大气田提供了理论基础。
Bo Chen, Yan Dai, Xuehua Ruan, Yuan Xi, Gaohong He
《化学科学与工程前沿(英文)》 2018年 第12卷 第2期 页码 296-305 doi: 10.1007/s11705-018-1701-3
关键词: membrane vapor separation membrane process modeling process engineering free volume theory volatile organic compound
标题 作者 时间 类型 操作
Destructive and non-destructive evaluation of concrete for optimum sand to aggregate volume ratio
期刊论文
selected semi-volatile organic compounds in water using automated online solid-phase extraction with large-volume
Yongtao LI, Christina L. MCCARTY, Ed J. GEORGE
期刊论文
Experimental and parametrical investigation of pre-stressed ultrahigh-performance fiber-reinforced concrete
期刊论文
Features of seismic hazard in large dam projects and strong motion monitoring of large dams
Martin WIELAND,
期刊论文
Molecular dynamics study of water diffusion in an amphiphilic block copolymer with large difference in
Yang Zhou, Phillip Choi
期刊论文
Damage identification of a large-span concrete cable-stayed bridge based on genetic algorithm
ZHU Jinsong, XIAO Rucheng
期刊论文
Pre-chamber turbulent jet ignition of methane/air mixtures with multiple orifices in a large bore constantvolume chamber: effect of air-fuel equivalence ratio and pre-mixed pressure
Xiang LI, Wenzheng ZHANG, Zhong HUANG, Dehao JU, Li HUANG, Mingzhi FENG, Xingcai LU, Zhen HUANG
期刊论文
Computational model generation and RVE design of self-healing concrete
Md. Shahriar QUAYUM,Xiaoying ZHUANG,Timon RABCZUK
期刊论文
Technology improvements and management innovations in construction of Xiluodu hydropower station on Jinsha River
Qixiang FAN
期刊论文