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Nima PIRHADI, Xiaowei TANG, Qing YANG, Afshin ASADI, Hazem Samih MOHAMED
《结构与土木工程前沿(英文)》 2021年 第15卷 第2期 页码 506-519 doi: 10.1007/s11709-021-0677-0
关键词: lateral spreading displacement cumulative absolute velocity fine content artificial neural network sensitivity analysis Monte Carlo simulation
null
《医学前沿(英文)》 2017年 第11卷 第4期 页码 563-569 doi: 10.1007/s11684-017-0535-6
The superiority of the cumulative outcomes of day 5/6 embryo transfer to those of day 2/3 embryo transfer in infertile couples has been debated. This retrospective study included data collected from 1051 patients from July 2011 to June 2014. Multiple maternal baseline covariates were subjected to propensity score matching analysis, and each day 5/6 group woman was matched to one day 2/3 group woman. A systematic meta-analysis was conducted to validate the results. After matching was completed, 217 patients on the day 2/3 group were matched with those on the day 5/6 group, and no significant differences in the baseline characteristics were observed between the two groups. The cumulative pregnancy rate (57.14% vs. 53.46%, OR 1.16, 95% CI 0.79–1.70) and cumulative live birth rate (53.00% vs. 49.77%, OR 1.14, 95% CI 0.78–1.66) of day 5/6 embryo transfers were higher than those of day 2/3 embryo transfers, but this difference was not significant. The mean cycles per live birth and mean days per live birth in the day 5/6 group were significantly lower than those in the day 2/3 group. This study demonstrated that day 5/6 embryo transfer is a more cost-effective and time-efficient policy than day 2/3 embryo transfer to produce a live baby.
关键词: blastocyst embryo transfer cumulative pregnancy rate cumulative live birth rate IVF
Prediction of the shear wave velocity
Amoroso SARA
《结构与土木工程前沿(英文)》 2014年 第8卷 第1期 页码 83-92 doi: 10.1007/s11709-013-0234-6
关键词: horizontal stress index shear wave velocity flat dilatometer test cone penetration test
Nonlinear cumulative damage model for multiaxial fatigue
SHANG De-guang, SUN Guo-qin, DENG Jing, YAN Chu-liang
《机械工程前沿(英文)》 2006年 第1卷 第3期 页码 265-269 doi: 10.1007/s11465-006-0035-x
杨晓华,姚卫星,段成美
《中国工程科学》 2003年 第5卷 第4期 页码 81-87
著名的Miner-Palmgren线性累积损伤理论的提出已有70余年,但由于疲劳问题的复杂性,迄今为止还没有一个模型的工程应用价值能与该理论媲美。疲劳累积损伤理论仍在发展与完善中。文章根据疲劳损伤与疲劳累积损伤理论的特点,将确定性疲劳累积损伤理论分成两大类,即线性累积损伤理论和非线性累积损伤理论,并将主要的非线性累积损伤理论分成五类:a. 基于损伤曲线法的非线性累积损伤理论;b. 基于材料物理性能退化概念的非线性累积损伤理论;c. 基于连续损伤力学概念的非线性累积损伤理论;d. 考虑载荷间相互作用效应的非线性累积损伤理论;e. 基于能量法的非线性累积损伤理论。文章分析了每一类模型中有代表性模型的物理背景,回答了模型在疲劳累积损伤理论中存在的主要问题,简要评述了模型的优缺点,讨论了确定性疲劳累积损伤理论的几个关键问题。
Hossein ASADI KALAMEH, Arash KARAMALI, Cosmin ANITESCU, Timon RABCZUK
《结构与土木工程前沿(英文)》 2012年 第6卷 第2期 页码 101-110 doi: 10.1007/s11709-012-0160-z
关键词: smoothed particle hydrodynamics high velocity impact sensitivity analysis
Experimental study on velocity characteristics of recirculation zone in humid air non-premixed flame
GU Xin, ZANG Shusheng, GE Bing
《能源前沿(英文)》 2008年 第2卷 第2期 页码 140-144 doi: 10.1007/s11708-008-0037-y
关键词: distance bluff-body fuel-to-air velocity stagnation parameter
An update and cumulative meta-analysis
null
《医学前沿(英文)》 2014年 第8卷 第2期 页码 241-249 doi: 10.1007/s11684-014-0328-0
Approximately 70% of newly diagnosed bladder tumors are non-muscle invasive bladder cancer (NMIBC). NMIBC accounts for approximately 80% of total bladder cancer cases. Bacillus Calmette-Guérin (BCG) instillation and maintenance is considered as the standard adjuvant treatment for superficial bladder cancer. A number of randomized studies have focused on the benefit of maintenance therapy following initial BCG induction. To provide further insights into the effect of intravesical instillation on recurrence in patients with NMIBC, we analyzed this relationship by conducting an updated detailed meta-analysis. Evidence suggested that adjuvant intravesical BCG with maintenance treatment is significantly effective for the prophylaxis of tumor recurrence in patients with NMIBC.
关键词: non-muscle invasive bladder cancer bacillus Calmette-Guérin (BCG) meta-analysis
《医学前沿(英文)》 2022年 第16卷 第5期 页码 714-722 doi: 10.1007/s11684-021-0888-8
关键词: metabolic dysfunction-associated fatty liver disease non-alcoholic fatty liver disease fibrosis score brachial-ankle pulse wave velocity albuminuria
Roham RAFIEE, Hossein RASHEDI, Shiva REZAEE
《结构与土木工程前沿(英文)》 2020年 第14卷 第6期 页码 1349-1358 doi: 10.1007/s11709-020-0650-3
关键词: composite pressure vessel low-velocity impact failure theoretical solution progressive damage modeling
Topology optimization of piezoelectric bi-material actuators with velocity feedback control
Mariana MORETTI, Emílio C. N. SILVA
《机械工程前沿(英文)》 2019年 第14卷 第2期 页码 190-200 doi: 10.1007/s11465-019-0537-y
关键词: topology optimization method bi-material piezoactuator active velocity feedback control time-domain transient analysis host structure design vibration suppression
黄志洵,耿天明
《中国工程科学》 2007年 第9卷 第4期 页码 6-17
宇宙早期的强子时期,光速比c大,实际上可达v=75c。故光速随时间缓慢减小,从v降低到今天的值(c)。另一方面,根据对128个类星体吸收线的测量,在过去的6~12Ga期间,精细结构常数α平均增大了6×10-6,科学家们认为可能是光速变化造成的。对上述效应进行研究以了解宇宙的过去是有趣的。还深入讨论了超光速研究中的一些问题———微观粒子速度的定义,引力速度,量子纠缠态作用速度以及超距作用。对这些概念有了更准确的理解。
《结构与土木工程前沿(英文)》 2021年 第15卷 第5期 页码 1199-1208 doi: 10.1007/s11709-021-0749-1
关键词: uncertainties V S– N correlations V S30 SPT data statistical methodology
Ballistic behavior of plain and reinforced concrete slabs under high velocity impact
Chahmi OUCIF, Luthfi Muhammad MAULUDIN, Farid Abed
《结构与土木工程前沿(英文)》 2020年 第14卷 第2期 页码 299-310 doi: 10.1007/s11709-019-0588-5
关键词: Johnson-Holmquist-2 Johnson-Cook reinforced concrete damage impact loads
标题 作者 时间 类型 操作
displacement caused by seismic liquefaction and performing parametric sensitivity analysis: Considering cumulativeabsolute velocity and fine content
Nima PIRHADI, Xiaowei TANG, Qing YANG, Afshin ASADI, Hazem Samih MOHAMED
期刊论文
Propensity score-matched study and meta-analysis of cumulative outcomes of day 2/3 versus day 5/6 embryo
null
期刊论文
Nonlinear cumulative damage model for multiaxial fatigue
SHANG De-guang, SUN Guo-qin, DENG Jing, YAN Chu-liang
期刊论文
High velocity impact of metal sphere on thin metallic plate using smooth particle hydrodynamics (SPH)
Hossein ASADI KALAMEH, Arash KARAMALI, Cosmin ANITESCU, Timon RABCZUK
期刊论文
Experimental study on velocity characteristics of recirculation zone in humid air non-premixed flame
GU Xin, ZANG Shusheng, GE Bing
期刊论文
definition of metabolic dysfunction-associated fatty liver disease with elevated brachial-ankle pulse wave velocity
期刊论文
Theoretical study of failure in composite pressure vessels subjected to low-velocity impact and internal
Roham RAFIEE, Hossein RASHEDI, Shiva REZAEE
期刊论文
Topology optimization of piezoelectric bi-material actuators with velocity feedback control
Mariana MORETTI, Emílio C. N. SILVA
期刊论文
Accounting for the uncertainties in the estimation of average shear wave velocity using – correlations
期刊论文