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Acoustic characteristics of bi-directional turbines for thermoacoustic generators
Dongdong LIU, Yanyan CHEN, Wei DAI, Ercang LUO
《能源前沿(英文)》 2022年 第16卷 第6期 页码 1027-1036 doi: 10.1007/s11708-020-0702-3
关键词: thermoacoustic power generator acoustic characteristics bi-directional impulse turbine energy conversion
A Bayesian modeling approach to bi-directional pedestrian flows in carnival events
S. Q. XIE, S. C. WONG, William H. K. LAM
《工程管理前沿(英文)》 2017年 第4卷 第4期 页码 483-489 doi: 10.15302/J-FEM-2017023
关键词: pedestrian flow model bi-directional interactions empirical studies Bayesian inference
LIU Hongxing, TONG Chunrong, CAI Peng, GU Jiangying, LIN Yuehui, TENG Wen, WANG He, ZHANG Ying, ZHU Ping
《医学前沿(英文)》 2008年 第2卷 第3期 页码 309-313 doi: 10.1007/s11684-008-0059-1
关键词: specific amplification essential thrombocythemia Single-tube bi-directional JAK2V617F-positive JAK2V617F detection
Technological development and engineering applications of novel steel-concrete composite structures
Jianguo NIE, Jiaji WANG, Shuangke GOU, Yaoyu ZHU, Jiansheng FAN
《结构与土木工程前沿(英文)》 2019年 第13卷 第1期 页码 1-14 doi: 10.1007/s11709-019-0514-x
In view of China’s development trend of green building and building industrialization, based on the emerging requirements of the structural engineering community, the development and proposition of novel resource-saving high-performance steel-concrete composite structural systems with adequate safety and durability has become a kernel development trend in structural engineering. This paper provides a state of the art review of China’s cutting-edge research and technologies in steel-concrete composite structures in recent years, including the building engineering, the bridge engineering and the special engineering. This paper summarizes the technical principles and applications of the long-span bi-directional composite structures, the long-span composite transfer structures, the comprehensive crack control technique based on uplift-restricted and slip-permitted (URSP) connectors, the steel plate concrete composite (SPCC) strengthen technique, and the innovative composite joints. By improving and revising traditional structure types, the comprehensive superiority of steel-concrete composite structures is well elicited. The research results also indicate that the high-performance steel-concrete composite structures have a promising popularizing prospect in the future.
关键词: high-performance composite structure bi-directional composite composite transfer uplift-restricted and slip-permitted connectors steel plate concrete composite strengthen
Novel casting processes for single-crystal turbine blades of superalloys
Dexin MA
《机械工程前沿(英文)》 2018年 第13卷 第1期 页码 3-16 doi: 10.1007/s11465-018-0475-0
This paper presents a brief review of the current casting techniques for single-crystal (SC) blades, as well as an analysis of the solidification process in complex turbine blades. A series of novel casting methods based on the Bridgman process were presented to illustrate the development in the production of SC blades from superalloys. The grain continuator and the heat conductor techniques were developed to remove geometry-related grain defects. In these techniques, the heat barrier that hinders lateral SC growth from the blade airfoil into the extremities of the platform is minimized. The parallel heating and cooling system was developed to achieve symmetric thermal conditions for SC solidification in blade clusters, thus considerably decreasing the negative shadow effect and its related defects in the current Bridgman process. The dipping and heaving technique, in which thin-shell molds are utilized, was developed to enable the establishment of a high temperature gradient for SC growth and the freckle-free solidification of superalloy castings. Moreover, by applying the targeted cooling and heating technique, a novel concept for the three-dimensional and precise control of SC growth, a proper thermal arrangement may be dynamically established for the microscopic control of SC growth in the critical areas of large industrial gas turbine blades.
关键词: superalloy investment casting Bridgman process directional solidification single crystal turbine blade
基于Spark面向分布式EEMDN-SABiGRU模型的乘客热点预测
夏大文,耿建,黄瑞曦,申冰琪,胡杨,李艳涛,李华青
《信息与电子工程前沿(英文)》 2023年 第24卷 第9期 页码 1316-1331 doi: 10.1631/FITEE.2200621
关键词: 乘客热点预测 集合经验模态分解(EEMD) 空间注意力机制 双向门控循环单元(BiGRU) GPS轨迹 Spark
Haizheng DANG, Dingli BAO, Zhiqian GAO, Tao ZHANG, Jun TAN, Rui ZHA, Jiaqi LI, Ning LI, Yongjiang ZHAO, Bangjian ZHAO
《能源前沿(英文)》 2019年 第13卷 第3期 页码 450-463 doi: 10.1007/s11708-018-0569-8
关键词: single-compressor-driven three-stage Stirling-type pulse tube cryocooler theoretical modeling experimental verification
Layout optimization of steel reinforcement in concrete structure using a truss-continuum model
《结构与土木工程前沿(英文)》 2023年 第17卷 第5期 页码 669-685 doi: 10.1007/s11709-023-0963-0
关键词: bi-directional evolutionary structural optimization steel-reinforced concrete concrete stress reinforcement method hybrid model
Xuming LIU, Xiafan XU, Biao YANG, Xiaotong XI, Liubiao CHEN, Junjie WANG, Yuan ZHOU
《能源前沿(英文)》 2021年 第15卷 第2期 页码 345-357 doi: 10.1007/s11708-020-0708-x
关键词: radiation heat leakage active thermal insulation cascade utilization cold energy performance improvement cryocooler
A cytoprotective graphene oxide-polyelectrolytes nanoshell for single-cell encapsulation
Luanying He, Yulin Chang, Junhao Zhu, Ying Bi, Wenlin An, Yiyang Dong, Jia-Hui Liu, Shihui Wang
《化学科学与工程前沿(英文)》 2021年 第15卷 第2期 页码 410-420 doi: 10.1007/s11705-020-1950-9
Improved directional-distance filter
JIN Lianghai, LI Dehua
《机械工程前沿(英文)》 2008年 第3卷 第2期 页码 205-211 doi: 10.1007/s11465-008-0025-2
关键词: information distance-weighted directional-distance ADWDDF traditional DDF spatial-distance weighting
Hysteretic behavior of cambered surface steel tube damper: Theoretical and experimental research
《结构与土木工程前沿(英文)》 2023年 第17卷 第4期 页码 606-624 doi: 10.1007/s11709-023-0925-6
关键词: cambered surface steel tube damper energy dissipation capacity finite element model hysteretic performance parametric study
Liangbi WANG, Zhimin LIN, Kangjie SUN, Yuanxin DONG, Song LIU, Yongheng ZHANG,
《能源前沿(英文)》 2010年 第4卷 第3期 页码 333-345 doi: 10.1007/s11708-009-0061-6
关键词: heat transfer enhancement vortex generator finned flat tube bank heat exchanger
《能源前沿(英文)》 2023年 第17卷 第4期 页码 516-526 doi: 10.1007/s11708-022-0844-6
关键词: Stirling/pulse tube refrigerator displacer displacement space application phase shift energy distribution
Genetic evidence in planar cell polarity signaling pathway in human neural tube defects
null
《医学前沿(英文)》 2014年 第8卷 第1期 页码 68-78 doi: 10.1007/s11684-014-0308-4
Neural tube defects (NTDs) are a group of birth anomalies having a profound physical, emotional, and financial effects on families and communities. Their etiology is complex, involving environmental and genetic factors that interact to modulate the incidence and severity of the developing phenotype. The planar cell polarity (PCP) pathway controls the process of convergent extension (CE) during gastrulation and neural tube closure and has been implicated in the pathogenesis of NTDs in animal models and human cohorts. This review summarizes the cumulative results of recent studies on PCP signaling pathway and human NTDs. These results demonstrate that PCP gene alterations contribute to the etiology of human NTDs.
关键词: planar cell polarity neural tube defects rare mutations
标题 作者 时间 类型 操作
Acoustic characteristics of bi-directional turbines for thermoacoustic generators
Dongdong LIU, Yanyan CHEN, Wei DAI, Ercang LUO
期刊论文
A Bayesian modeling approach to bi-directional pedestrian flows in carnival events
S. Q. XIE, S. C. WONG, William H. K. LAM
期刊论文
Observation of a higher JAK2 V617F homozygous mutated clone in polycythemia vera compared to essential thrombocythemia
LIU Hongxing, TONG Chunrong, CAI Peng, GU Jiangying, LIN Yuehui, TENG Wen, WANG He, ZHANG Ying, ZHU Ping
期刊论文
Technological development and engineering applications of novel steel-concrete composite structures
Jianguo NIE, Jiaji WANG, Shuangke GOU, Yaoyu ZHU, Jiansheng FAN
期刊论文
Theoretical modeling and experimental verifications of the single-compressor-driven three-stage Stirling-typepulse tube cryocooler
Haizheng DANG, Dingli BAO, Zhiqian GAO, Tao ZHANG, Jun TAN, Rui ZHA, Jiaqi LI, Ning LI, Yongjiang ZHAO, Bangjian ZHAO
期刊论文
Performance improvement of a pulse tube cryocooler with a single compressor through cascade utilization
Xuming LIU, Xiafan XU, Biao YANG, Xiaotong XI, Liubiao CHEN, Junjie WANG, Yuan ZHOU
期刊论文
A cytoprotective graphene oxide-polyelectrolytes nanoshell for single-cell encapsulation
Luanying He, Yulin Chang, Junhao Zhu, Ying Bi, Wenlin An, Yiyang Dong, Jia-Hui Liu, Shihui Wang
期刊论文
Hysteretic behavior of cambered surface steel tube damper: Theoretical and experimental research
期刊论文
Transversal tube pitch effects on local heat transfer characteristics of the flat tube bank fin mounted
Liangbi WANG, Zhimin LIN, Kangjie SUN, Yuanxin DONG, Song LIU, Yongheng ZHANG,
期刊论文
Energy distribution between liquid hydrogen and liquid oxygen temperatures in a Stirling/pulse tube refrigerator
期刊论文