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Development and clinical trial of a novel bioactive bone cement
LEONG John, LI Zhaoyang, LU William
《医学前沿(英文)》 2008年 第2卷 第2期 页码 117-126 doi: 10.1007/s11684-008-0022-1
关键词: bioactivity effectiveness strontium-containing hydroxyapatite osseointegration sufficient mechanical
Sufficient downward rotation of the christa philtri on the cleft side: a modified technique
null
《医学前沿(英文)》 2013年 第7卷 第4期 页码 510-516 doi: 10.1007/s11684-013-0299-6
Cleft lip and palate (CLP) is the most common craniofacial congenital deformity. The etiology of CLP is multifactorial and involves complex interactions between environmental and genetic factors. Millard’s rotation-advancement technique has long been considered as state-of-the-art for unilateral cleft lip repair. However, this method may leave the christa philtri on the cleft side insufficiently downward rotated, especially in wide complete clefts. In this study, we introduce a modified technique to better rotate the christa philtri on the cleft side down. The skin, muscle, and mucosa in the deformed region were dissected and separately maneuvered. Sixty patients with unilateral complete cleft lip and palate were operated with this technique. The lip height, lip length, and relative height of the christa philtri were measured for symmetry evaluation. No significant difference was observed between the relative height of the christa philtri on both sides, either immediate (P= 0.214) or 10 months after surgery (P = 0.344). The difference observed in the lip height and lip length immediately after surgery became statistically insignificant after 10 months (P = 0.104 for lip height and 0.121 for lip length). These results suggested that sufficient and stable downward rotation of the christa philtri on the cleft side can be achieved using our technique.
关键词: cleft lip and palate rotation advancement sufficient rotation christa philtri geometrically justified
《机械工程前沿(英文)》 2023年 第18卷 第2期 doi: 10.1007/s11465-023-0747-1
关键词: micro-electro-mechanical system capacitive sensor bionics operation instability mechanical and electrical decoupling biomedical force measurement
ZENG Wei, PENG Yongzhen, WANG Shuying
《环境科学与工程前沿(英文)》 2007年 第1卷 第1期 页码 28-32 doi: 10.1007/s11783-007-0005-5
关键词: bicarbonate alkalinity sufficient influent influent alkalinity detection alkalinity production
赵克文
《中国工程科学》 2003年 第5卷 第11期 页码 61-64
记δ和α分别表示图G的最小度和独立数,1991年Faudree等人得到图G不相邻的任意2点x,y均有|N(x)∪N(y)|≥n-δ的Hamiltonian结果。1993年美国乔治亚州立大学的陈冠涛教授深化Fan条件并且得到满足1≤|N (x)∩N(y)|≤α-1的不相邻的任2点x,y均有max{d(x),d(y)}≥n/2的Hamiltonian结果。进一步改进Faudree等人的条件和综合陈冠涛教授的思路,研究满足1≤|N(x)∩N(y)|≤α-1的不相邻的任2点x,y均有|N(x)∪N(y)|≥n-δ-1,则是哈密尔顿图或G∈{K(n-1)/2, (n + 1)/2, K2* V3K(n-2)/3}。
Determination of mechanical parameters for elements in meso-mechanical models of concrete
Xianglin GU, Junyu JIA, Zhuolin WANG, Li HONG, Feng LIN
《结构与土木工程前沿(英文)》 2013年 第7卷 第4期 页码 391-401 doi: 10.1007/s11709-013-0225-7
关键词: concrete meso-mechanical model discrete element method size effect mechanical parameter
《化学科学与工程前沿(英文)》 2023年 第17卷 第9期 页码 1254-1266 doi: 10.1007/s11705-023-2297-3
关键词: epoxy resin polyaniline nanorods mechanical property tribological performance wear mechanism
Thermo-mechanical simulation of frost heave in saturated soils
《结构与土木工程前沿(英文)》 页码 1400-1412 doi: 10.1007/s11709-023-0990-x
关键词: frost heave multiphysics analysis thermo-mechanical approach saturated soils
Electronic and mechanical responses of two-dimensional HfS
Mohammad SALAVATI
《结构与土木工程前沿(英文)》 2019年 第13卷 第2期 页码 486-494 doi: 10.1007/s11709-018-0491-5
Experimental study on compaction-induced anisotropic mechanical property of rockfill material
Xiangtao ZHANG, Yizhao GAO, Yuan WANG, Yu-zhen YU, Xun SUN
《结构与土木工程前沿(英文)》 2021年 第15卷 第1期 页码 109-123 doi: 10.1007/s11709-021-0693-0
关键词: rockfill inclination of specimen preparation anisotropy mechanical property mechanism
《能源前沿(英文)》 2023年 第17卷 第5期 页码 569-584 doi: 10.1007/s11708-023-0875-7
关键词: lithium (Li)-ion battery (LIB) Li metal battery three-dimensional (3D) composite Li metal anode mechanical modification reducing local current density
Francesco PENTA,Cesare ROSSI,Sergio SAVINO
《机械工程前沿(英文)》 2016年 第11卷 第2期 页码 184-194 doi: 10.1007/s11465-016-0385-y
This study aims to optimize the geometrical parameters of an under-actuated mechanical finger by conducting a theoretical analysis of these parameters. The finger is actuated by a flexion tendon and an extension tendon. The considered parameters are the tendon guide positions with respect to the hinges. By applying such an optimization, the correct kinematical and dynamical behavior of the closing cycle of the finger can be obtained. The results of this study are useful for avoiding the snap-through and the single joint hyperflexion, which are the two breakdowns most frequently observed during experimentation on prototypes. Diagrams are established to identify the optimum values for the tendon guides position of a finger with specified dimensions. The findings of this study can serve as guide for future finger design.
关键词: tendon-driven fingers mechanical finger design under-actuated mechanical systems
Introduction to the special issue on the VIII Latin-American Congress on Mechanical Engineering
Marco CECCARELLI,René-Vinicio SÁNCHEZ
《机械工程前沿(英文)》 2015年 第10卷 第3期 页码 219-220 doi: 10.1007/s11465-015-0356-8
Mahdi AREZOUMANDI, Mark EZZELL, Jeffery S VOLZ
《结构与土木工程前沿(英文)》 2014年 第8卷 第1期 页码 36-45 doi: 10.1007/s11709-014-0243-0
关键词: admixture conventional concrete (CC) creep fracture mechanic mechanical Properties self-consolidating concrete (SCC) shrinkage
标题 作者 时间 类型 操作
Development and clinical trial of a novel bioactive bone cement
LEONG John, LI Zhaoyang, LU William
期刊论文
Sufficient downward rotation of the christa philtri on the cleft side: a modified technique
null
期刊论文
A bionic approach for the mechanical and electrical decoupling of an MEMS capacitive sensor in ultralow
期刊论文
Process evaluation of an alternating aerobic-anoxic process applied in a sequencing batch reactor for nitrogen removal
ZENG Wei, PENG Yongzhen, WANG Shuying
期刊论文
Determination of mechanical parameters for elements in meso-mechanical models of concrete
Xianglin GU, Junyu JIA, Zhuolin WANG, Li HONG, Feng LIN
期刊论文
Facile synthesis of polyaniline nanorods to simultaneously enhance the mechanical properties and wear
期刊论文
Experimental study on compaction-induced anisotropic mechanical property of rockfill material
Xiangtao ZHANG, Yizhao GAO, Yuan WANG, Yu-zhen YU, Xun SUN
期刊论文
Three-dimensional composite Li metal anode by simple mechanical modification for high-energy batteries
期刊论文
Analysis of suitable geometrical parameters for designing a tendon-driven under-actuated mechanical finger
Francesco PENTA,Cesare ROSSI,Sergio SAVINO
期刊论文
Introduction to the special issue on the VIII Latin-American Congress on Mechanical Engineering
Marco CECCARELLI,René-Vinicio SÁNCHEZ
期刊论文