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《结构与土木工程前沿(英文)》 2021年 第15卷 第3期 页码 781-792 doi: 10.1007/s11709-021-0733-9
关键词: lightweight cellular concrete construction-induced damage freeze-thaw action microstructure degradation mechanism
Quality evaluation of lightweight cellular concrete by an ultrasound-based method
Xin LIU; Dongning SUN; Jinhe LIAO; Zhiwei SHAO; Yunqiang SHI; Siqing ZHANG; Yunlong YAO; Baoning HONG
《结构与土木工程前沿(英文)》 2022年 第16卷 第9期 页码 1170-1182 doi: 10.1007/s11709-022-0874-5
关键词: lightweight cellular concrete subgrade ultrasound testing quality evaluation crack discrimination
《结构与土木工程前沿(英文)》 2023年 第17卷 第5期 页码 704-721 doi: 10.1007/s11709-023-0941-6
关键词: precast steel–UHPC composite beam flexural performance longitudinal shear performance parametric study transverse reinforcement ratio
Precast steel–UHPC lightweight composite bridge for accelerated bridge construction
Shuwen DENG, Xudong SHAO, Xudong ZHAO, Yang WANG, Yan WANG
《结构与土木工程前沿(英文)》 2021年 第15卷 第2期 页码 364-377 doi: 10.1007/s11709-021-0702-3
关键词: accelerated bridge construction ultrahigh-performance concrete steel–UHPC composite bridge UHPC girder-to-girder joint
Analysis and design of steel-concrete composite sandwich systems subjected to extreme loads
Kazi Md Abu SOHEL, Jat Yuen Richard LIEW, Min Hong ZHANG
《结构与土木工程前沿(英文)》 2011年 第5卷 第3期 页码 278-293 doi: 10.1007/s11709-011-0120-z
关键词: blast load composite structure impact load lightweight concrete sandwich plate J-hook connector
Thomas ELLINGHAM, Hrishikesh KHARBAS, Mihai MANITIU, Guenter SCHOLZ, Lih-Sheng TURNG
《机械工程前沿(英文)》 2018年 第13卷 第1期 页码 96-106 doi: 10.1007/s11465-018-0498-6
A three-stage molding process involving microcellular injection molding with core retraction and an “out-of-mold” expansion was developed to manufacture thermoplastic polyurethane into lightweight foams of varying local densities, microstructures, and mechanical properties in the same microcellular injection molded part. Two stages of cavity expansion through sequential core retractions and a third expansion in a separate mold at an elevated temperature were carried out. The densities varied from 0.25 to 0.42 g/cm3 (77% to 62% weight reduction). The mechanical properties varied as well. Cyclic compressive strengths and hysteresis loss ratios, together with the microstructures, were characterized and reported.
关键词: thermoplastic polyurethane microcellular injection molding cavity expansion compressive strength hysteresis loss ratio
Regulation of T cell immunity by cellular metabolism
null
《医学前沿(英文)》 2018年 第12卷 第4期 页码 463-472 doi: 10.1007/s11684-018-0668-2
T cells are an important adaptive immune response arm that mediates cell-mediated immunity. T cell metabolism plays a central role in T cell activation, proliferation, differentiation, and effector function. Specific metabolic programs are tightly controlled to mediate T cell immune responses, and alterations in T cell metabolism may result in many immunological disorders. In this review, we will summarize the main T cell metabolic pathways and the important factors participating in T cell metabolic programming during T cell homeostasis, differentiation, and function.
关键词: T cell immunity metabolic pathways nutrient uptake metabolic checkpoints
A lightweight authentication scheme with user untraceability
Kuo-Hui YEH
《信息与电子工程前沿(英文)》 2015年 第16卷 第4期 页码 259-271 doi: 10.1631/FITEE.1400232
关键词: Authentication Privacy Security Smart card Untraceability
Parametric sensitivity analysis of cellular diaphragm wall
Xi CHEN, Wei XU
《结构与土木工程前沿(英文)》 2012年 第6卷 第4期 页码 358-364 doi: 10.1007/s11709-012-0177-3
关键词: cellular diaphragm wall sensitivity analysis optimization centrifuge model test
Temperature and structural responses of a single-section utility tunnel throughout fire exposure
Yanmin YANG; Ying XIONG; Yongqing LI; Xiangkun MENG; Peng WANG; Tianyuan CAI
《结构与土木工程前沿(英文)》 2022年 第16卷 第10期 页码 1351-1364 doi: 10.1007/s11709-022-0857-6
关键词: full lightweight concrete construction methods temperature response structural response fire test
Liver cell therapies: cellular sources and grafting strategies
《医学前沿(英文)》 2023年 第17卷 第3期 页码 432-457 doi: 10.1007/s11684-023-1002-1
关键词: liver regeneration hepatocytes cholangiocytes stem cells organoids regulatory mechanisms transplantation/grafting strategies
Optimization of Land-use Based on the Theory of Cellular Automata and Value of Ecosystem Services
Lian-fu Jiang,Guo-xian Xu,Hao Jiang
《工程管理前沿(英文)》 2014年 第1卷 第4期 页码 395-401 doi: 10.15302/J-FEM-2014058
关键词: Ecosystem service function optimization of land use Cellular Automata (CA)
A novel approach to preparing ultra-lightweight ceramsite with a large amount of fly ash
Sen Liu, Congren Yang, Wei Liu, Longsheng Yi, Wenqing Qin
《环境科学与工程前沿(英文)》 2020年 第14卷 第4期 doi: 10.1007/s11783-020-1241-1
关键词: Fly ash Ultra-lightweight ceramsite Expansion mechanism Sintering process
Lightweight design of an electric bus body structure with analytical target cascading
《机械工程前沿(英文)》 2023年 第18卷 第1期 doi: 10.1007/s11465-022-0718-y
关键词: electric vehicle body in white (BIW) lightweight analytical target cascading (ATC)
Macro-architectured cellular materials: Properties, characteristic modes, and prediction methods
Zheng-Dong MA
《机械工程前沿(英文)》 2018年 第13卷 第3期 页码 442-459 doi: 10.1007/s11465-018-0488-8
Macro-architectured cellular (MAC) material is defined as a class of engineered materials having configurable cells of relatively large (i.e., visible) size that can be architecturally designed to achieve various desired material properties. Two types of novel MAC materials, negative Poisson’s ratio material and biomimetic tendon reinforced material, were introduced in this study. To estimate the effective material properties for structural analyses and to optimally design such materials, a set of suitable homogenization methods was developed that provided an effective means for the multiscale modeling of MAC materials. First, a strain-based homogenization method was developed using an approach that separated the strain field into a homogenized strain field and a strain variation field in the local cellular domain superposed on the homogenized strain field. The principle of virtual displacements for the relationship between the strain variation field and the homogenized strain field was then used to condense the strain variation field onto the homogenized strain field. The new method was then extended to a stress-based homogenization process based on the principle of virtual forces and further applied to address the discrete systems represented by the beam or frame structures of the aforementioned MAC materials. The characteristic modes and the stress recovery process used to predict the stress distribution inside the cellular domain and thus determine the material strengths and failures at the local level are also discussed.
关键词: architectured material cellular materials multi-scale modeling homogenization method effective material properties computational method
标题 作者 时间 类型 操作
Influence of construction-induced damage on the degradation of freeze–thawed lightweight cellular concrete
期刊论文
Quality evaluation of lightweight cellular concrete by an ultrasound-based method
Xin LIU; Dongning SUN; Jinhe LIAO; Zhiwei SHAO; Yunqiang SHI; Siqing ZHANG; Yunlong YAO; Baoning HONG
期刊论文
Flexural and longitudinal shear performance of precast lightweight steel–ultra-high performance concrete
期刊论文
Precast steel–UHPC lightweight composite bridge for accelerated bridge construction
Shuwen DENG, Xudong SHAO, Xudong ZHAO, Yang WANG, Yan WANG
期刊论文
Analysis and design of steel-concrete composite sandwich systems subjected to extreme loads
Kazi Md Abu SOHEL, Jat Yuen Richard LIEW, Min Hong ZHANG
期刊论文
Microcellular injection molding process for producing lightweight thermoplastic polyurethane with customizable
Thomas ELLINGHAM, Hrishikesh KHARBAS, Mihai MANITIU, Guenter SCHOLZ, Lih-Sheng TURNG
期刊论文
Temperature and structural responses of a single-section utility tunnel throughout fire exposure
Yanmin YANG; Ying XIONG; Yongqing LI; Xiangkun MENG; Peng WANG; Tianyuan CAI
期刊论文
Optimization of Land-use Based on the Theory of Cellular Automata and Value of Ecosystem Services
Lian-fu Jiang,Guo-xian Xu,Hao Jiang
期刊论文
A novel approach to preparing ultra-lightweight ceramsite with a large amount of fly ash
Sen Liu, Congren Yang, Wei Liu, Longsheng Yi, Wenqing Qin
期刊论文