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Progress in terahertz nondestructive testing: A review
Shuncong ZHONG
《机械工程前沿(英文)》 2019年 第14卷 第3期 页码 273-281 doi: 10.1007/s11465-018-0495-9
关键词: terahertz pulsed imaging (TPI) nondestructive testing (NDT) composite material thermal barrier coating
从太赫兹成像到太赫兹无线通信 Review
Yi Huang,Yaochun Shen,Jiayou Wang
《工程(英文)》 2023年 第22卷 第3期 页码 106-124 doi: 10.1016/j.eng.2022.06.023
太赫兹(THz)技术是公众熟知的一种强大的成像工具,该技术已经被应用于安全领域和医学扫描,生成了许多使用其他技术所无法获得的令人印象深刻的图像。随着5G移动网络的推出,对6G无线通信的研究正在升温。据预测,太赫兹技术将被用于6G和未来的无线通信。本文回顾了太赫兹技术是如何被应用于成像和无线通信的,然后介绍和确定了该领域的最新发展,最后检查和比较了这两种应用中的常见设备和问题。本文还讨论了将太赫兹成像与无线通信整合的可能性,提出并讨论了目前面临的挑战和未来前景。结果表明,太赫兹技术是未来成像和无线通信的一项关键使能技术。
Time of flight improved thermally grown oxide thickness measurement with terahertz spectroscopy
《机械工程前沿(英文)》 2022年 第17卷 第4期 doi: 10.1007/s11465-022-0705-3
关键词: thermal barrier coatings thermally grown oxide terahertz spectroscopy time of flight
Magnetostriction varieties and stress relief caused by pulsed magnetic field
Zhipeng CAI, Xinjie DUAN, Jian LIN, Haiyan ZHAO
《机械工程前沿(英文)》 2011年 第6卷 第3期 页码 354-358 doi: 10.1007/s11465-011-0123-4
Magnetostriction is investigated to evaluate the stress relief caused by pulsed magnetic field treatment, because this physical property is closely associated with residual stress. Magnetostriction of different stressed samples is measured in this paper. The stress variations caused by pulsed magnetic treatment are also compared. It is found that magnetostriction variations are closely associated with stress changes. Thermodynamic potential is used to find the relationship between them. Based on several assumptions, we find that the product of magnetostriction amplitude and stress magnitude is nearly a constant during magnetic field treatment, which is valuable for stress relief evaluation and optimizing processing parameters. This conclusion is testified by stress measurements, and the calculated values are in accordance with the experiment results.
关键词: magnetostriction pulsed magnetic field treatment stress relief
高精度太赫兹异频回溯天线阵列 Correspondence
Zhong-bo ZHU, Wei-dong HU, Tao QIN, Sheng LI, Xiao-jun LI, Jiang-jie ZENG, Xian-qi LIN, Leo P. LIGTHART
《信息与电子工程前沿(英文)》 2020年 第21卷 第3期 页码 377-383 doi: 10.1631/FITEE.1900581
Jianpeng Liu, Xinhua Chen, Shusen Zheng
《医学前沿(英文)》 2021年 第15卷 第2期 页码 170-177 doi: 10.1007/s11684-020-0747-z
关键词: nanosecond pulsed electric fields (nsPEF) hepatocellular carcinoma (HCC) immune response recurrence metastasis
Advanced nitrogen removal by pulsed sequencing batch reactors (SBR) with real-time control
YANG Qing, PENG Yongzhen, YANG Anming, LI Jianfeng, GUO Jianhua
《环境科学与工程前沿(英文)》 2007年 第1卷 第4期 页码 488-492 doi: 10.1007/s11783-007-0078-1
关键词: reduction potential oxidation reduction operational feasibility nitrogen
孙凤举,邱爱慈,曾正中,曾江涛,丛培天
《中国工程科学》 2009年 第11卷 第11期 页码 56-63
介绍了快直线型变压器(FLTD)脉冲源的技术特点;概述了美国圣地亚国家实验室与俄罗斯强流电子学研究所合作研制的FLTD-Z模块的新进展,基于FLTD拟重复频率运行的针对聚变能源(IFE)应用的原理性样机Z-POP装置,以及下一代惯性约束核聚变(ICF)和IFE用的指标为6 MV,60 MA/90 MA和100 ns FLTD型直接驱动脉冲源的概念设想;初步分析了FLTD直接驱动源需要研究的关键技术。
关键词: 快Z箍缩 直接驱动 FLTD型脉冲加速器 高功率脉冲加速器 概念设计
evaluation of renal function using diffusion weighted imaging and diffusion tensor imaging in type 2
null
《医学前沿(英文)》 2014年 第8卷 第4期 页码 471-476 doi: 10.1007/s11684-014-0365-8
This work aims to estimate the value of diffusion weighted imaging (DWI) and diffusion tensor imaging (DTI) in detecting early-stage kidney injury in type 2 diabetic patients with normoalbuminuria (NAU) versus microalbuminuria (MAU) prospectively. A total of 30 T2DM patients with normal kidney function were recruited and assigned to the NAU group (n = 14) or MAU group (n= 16) according to 8 h overnight urinary albuminuria excretion rate (AER) results. A contemporary cohort of health check-up recipients were included as controls (n = 12). DWI and DTI scans were performed on bilateral kidney using SE single-shot EPI, and apparent diffusion coefficient (ADC) and fractional anisotropy (FA) of the renal parenchyma was determined from ADC and FA maps of the three groups. ADC and FA values were compared among the three groups. According to DWI with a b value of 400 s/mm2, the MAU and NAU groups showed significantly lowered mean ADC values compared with the healthy controls (P<0.01). The mean ADC in the MAU group [(2.22±0.07)×10–3 mm2/s] was slightly lower than that of the NAU group [(2.31±0.22)×10–3 mm2/s], but this difference was not statistically significant (P>0.05). The FA value in the MAU group was higher than that in the control group (0.45±0.07 vs. 0.39±0.03, P = 0.004) but did not differ from that in the NAU group (0.42±0.03) (P>0.05). ADC and FA values may be more sensitive than urine AER in reflecting early-stage kidney injury and, hence, may facilitate earlier detection and quantitative evaluation of kidney injury in T2DM patients. Combined evaluation of ADC and FA values may provide a better quantitative approach for identifying diabetic nephropathy at early disease stages.
关键词: type 2 diabetes mellitus microalbuminuria diffusion weighted imaging diffusion tensor imaging early-stage kidney injury
赵君科,王保健,任先文,朱祖良
《中国工程科学》 2002年 第4卷 第2期 页码 74-78
利用建造在四川绵阳科学城热电厂的最大烟气处理量为20000 m3/h的脉冲电晕等离子体烟气脱硫工业中试装置,研究了影响脱硫效率的因素,获得了最佳工艺参数。究结果表明,当烟气温度在65~70℃,烟气水分含量约10%,氨硫化学剂量比为1∶1,烟停留时间大于6 s、能耗低于5 Wh/Nm3等条件下,脱硫率达85%以上。
Carbon dots-based fluorescence sensor for two-photon imaging of pH in diabetic mice
《化学科学与工程前沿(英文)》 2023年 第17卷 第3期 页码 298-306 doi: 10.1007/s11705-022-2212-9
In vivo imaging of hematopoietic stem cell development in the zebrafish
Panpan Zhang, Feng Liu
《医学前沿(英文)》 2011年 第5卷 第3期 页码 239-247 doi: 10.1007/s11684-011-0123-0
关键词:
hematopoietic stem cell
hematopoiesis
Yaobin Lu, Songli He, Dantong Wang, Siyuan Luo, Aiping Liu, Haiping Luo, Guangli Liu, Renduo Zhang
《环境科学与工程前沿(英文)》 2018年 第12卷 第5期 doi: 10.1007/s11783-018-1070-7
• A new pulsed switching peroxi-coagulation (PSPC) system was developed. • The ECT for 2,4-D removal in the PSPC was lower than that in the EF. • The iron consumption for 2,4-D removal in the PSPC was lower than that in the PC.
关键词: Pulsed switching peroxi-coagulation system Energy consumption Hydroxyl radical production 2 4- Dichlorophenoxyacetic acid
标题 作者 时间 类型 操作
Time of flight improved thermally grown oxide thickness measurement with terahertz spectroscopy
期刊论文
Magnetostriction varieties and stress relief caused by pulsed magnetic field
Zhipeng CAI, Xinjie DUAN, Jian LIN, Haiyan ZHAO
期刊论文
高精度太赫兹异频回溯天线阵列
Zhong-bo ZHU, Wei-dong HU, Tao QIN, Sheng LI, Xiao-jun LI, Jiang-jie ZENG, Xian-qi LIN, Leo P. LIGTHART
期刊论文
Immune response triggered by the ablation of hepatocellular carcinoma with nanosecond pulsed electric
Jianpeng Liu, Xinhua Chen, Shusen Zheng
期刊论文
Advanced nitrogen removal by pulsed sequencing batch reactors (SBR) with real-time control
YANG Qing, PENG Yongzhen, YANG Anming, LI Jianfeng, GUO Jianhua
期刊论文
evaluation of renal function using diffusion weighted imaging and diffusion tensor imaging in type 2
null
期刊论文