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A building unit decomposition model for energy leakage by infrared thermography image analysis
Yan SU, Fangjun HONG, Lianjie SHU
《能源前沿(英文)》 2020年 第14卷 第4期 页码 901-921 doi: 10.1007/s11708-020-0679-y
关键词: heat conductivity heat coefficient heat &fllig ux infrared thermography thermal image
Effects of radiation and heat source/sink on unsteady MHD boundary layer flow and heat transfer over
Krishnendu Bhattacharyya
《化学科学与工程前沿(英文)》 2011年 第5卷 第3期 页码 376-384 doi: 10.1007/s11705-011-1121-0
关键词: MHD boundary layer unsteady flow heat transfer thermal radiation heat source/sink shrinking sheet suction/injection
Jinying YIN, Linhua LIU
《能源前沿(英文)》 2011年 第5卷 第2期 页码 166-173 doi: 10.1007/s11708-010-0105-y
关键词: radiation heat transfer particle polydispersion liquid droplet radiator phase change
Bachirou GUENE LOUGOU, Yong SHUAI, Xiang CHEN, Yuan YUAN, Heping TAN, Huang XING
《能源前沿(英文)》 2017年 第11卷 第4期 页码 480-492 doi: 10.1007/s11708-017-0506-2
关键词: solar thermochemical reactor incident radiation flux temperature distribution radiation absorptivity radiation emissivity thermal performance analysis
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
Dongqiang LEI, Yucong REN, Zhifeng WANG
《能源前沿(英文)》 2022年 第16卷 第6期 页码 1048-1059 doi: 10.1007/s11708-020-0670-7
关键词: parabolic trough receiver vacuum annulus rarefied gas DSMC (direct simulation Monte Carlo) heat loss
Numerical and experimental analyses of methane leakage in shield tunnel
《结构与土木工程前沿(英文)》 页码 1011-1020 doi: 10.1007/s11709-023-0956-z
关键词: shield tunnel harmful gas leakage numerical analysis laboratory test
Effects of leakage and friction on the miniaturization of a Wankel compressor
Yilin ZHANG, Wen WANG
《能源前沿(英文)》 2011年 第5卷 第1期 页码 83-92 doi: 10.1007/s11708-010-0125-7
Cohesive zone model-based analyses of localized leakage of segmentally lined tunnels
《结构与土木工程前沿(英文)》 2023年 第17卷 第4期 页码 503-521 doi: 10.1007/s11709-023-0927-4
关键词: segmentally lined tunnel localized leakage cohesive element hydraulic behavior numerical modeling
Long-term settlement behavior of ground around shield tunnel due to leakage of water in soft deposit
Huaina WU, Yeshuang XU, Shui-long SHEN, Jin-chun CHAI
《结构与土木工程前沿(英文)》 2011年 第5卷 第2期 页码 194-198 doi: 10.1007/s11709-011-0105-y
关键词: lining deficit leakage of water shield tunnel settlement soft deposit
基于平板热管的新型直膨式辐射可调节供暖末端 Article
吴一凡, 孙弘历, 段梦凡, 林波荣, 赵恒昕, 刘兆鸿
《工程(英文)》 2023年 第20卷 第1期 页码 192-207 doi: 10.1016/j.eng.2021.09.019
建筑供暖电气化是实现碳中和目标的有效途径。作为一种清洁和可持续的电气化供暖技术,空气源热泵被广泛应用于缺乏集中供暖的地区。然而,现有末端形式存在难以同时实现间歇性和舒适性,且作为主要构件尚未较好地与空气源热泵匹配等问题。因此,本研究提出了一种与空气源热泵结合的新型辐射可调节供暖末端,以实现电气化节能减碳、间歇性和更好的热舒适性。针对辐射供暖末端目前存在三个主要问题,分别是峰值供热量受限、可调节性受限以及难以与空气源热泵结合,本文通过改进末端结构设计(改进A~E)提供了有效解决方案。研究结果表明,新末端能够将峰值供热量提升23.6%,并为使用者提供从10.1%到30.9%的可调辐射比。在此基础上,巧妙地借助平板热管减少了原有直膨式辐射供暖末端的制冷剂管路长度,进而改善了供暖末端的稳定性(利于回油)、间歇性(降低热惯性)和安全性(降低制冷剂泄漏风险)。此外,本文基于新末端提出了一种新的分阶段运行策略,可进一步提升末端的可调节性。本研究可以为电气化供暖助力建筑低碳提供一定参考。
Particle therapy for cancers: a new weapon in radiation therapy
null
《医学前沿(英文)》 2012年 第6卷 第2期 页码 165-172 doi: 10.1007/s11684-012-0196-4
Particle irradiation started to draw attention in the past decade and has now become a hotspot in the radiation oncology community. This article reviews the most advanced developments in particle irradiation, focusing on the characteristics of proton and carbon ions in radiation physics and radiobiology. The Bragg peak of physical dose distribution causes proton and carbon beams to optimally meet the requirement for cancer irradiation because the Bragg peak permits the accurate concentration of the dose on the tumor, thus sparing the adjacent normal tissues. Moreover, carbon ion has more radiobiological benefits than photon and proton beams. These benefits include stronger sterilization effects on intrinsic radio-resistant tumors and more effective killing of hypoxic, G0, and S phase cells. Compared with the most advanced radiation techniques using photon, such as three-dimensional conformal radiation therapy and intensity-modulated radiation therapy, proton therapy has yielded more promising outcomes in local control and survival for head and neck cancers, prostate carcinoma, and pediatric cancers. Carbon therapy in Japan showed even more promising results than proton therapy. The local controls and overall survivals were as good as that treated by surgery in early stages of non-small cell lung cancer, hepatocellular carcinoma, prostate carcinoma, and head and neck cancers, especially for such highly resistant tumors as melanoma. The non-invasive nature of particle therapy affords more patients with chances to receive and benefit from treatment. Particle therapy is gradually getting attention from the oncology community. However, the cost of particle therapy facilities has limited the worldwide use of this technology.
关键词: radiation therapy particle therapy proton carbon cancer
用于个人降温和保暖的具有定制热传导和热辐射特性的双功能非对称织物 Article
Yucan Peng, Hiang Kwee Lee, David S. Wu, Yi Cui
《工程(英文)》 2022年 第10卷 第3期 页码 167-173 doi: 10.1016/j.eng.2021.04.016
为了让人体感到热舒适,同时节约能源,个人热管理正逐渐成为一种颇有前景的策略。通过更好地控制人体散热,个人热管理可以实现有效的个人降温和保暖。本文提出了一种简单的表面改性方法,在商用织物的基础上定制热传导和热辐射特性,以便更好地管理从人体到环境的整个传热路径。本文对一种同时具有降温和保暖效果的双功能非对称织物(BAF)进行论证。凭借粗糙度不对称和表面改性等优点,BAF在降温模式下通过增强热传导和热辐射表现出显著的降温效果;在保暖模式下,两条路径的散热都减少,从而实现个人保暖。结果表明,在BAF的降温和保暖模式下测得的皮肤温差可达4.6 ℃,表明一件BAF衣服可以扩大人体的热舒适区。希望本研究可为用于个人热管理的织物的设计提供新的视角,并为现有的用于个人降温和保暖的织物的简单改性提供新的解决方案。
Security of solar radiation management geoengineering
Andrew LOCKLEY
《工程管理前沿(英文)》 2019年 第6卷 第1期 页码 102-116 doi: 10.1007/s42524-019-0008-5
Solar Radiation Management (SRM) geoengineering is a proposed response to anthropogenic global warming (AGW) (National Academy of Sciences, 2015). There may be profound – even violent – disagreement on preferred temperature. SRM disruption risks dangerous temperature rise (termination shock). Concentrating on aircraft-delivered Stratospheric Aerosol Injection (SAI), we appraise threats to SRM and defense methodologies. Civil protest and minor cyberattacks are almost inevitable but are manageable (unless state-sponsored). Overt military attacks are more disruptive, but unlikely – although superpowers’ symbolic overt attacks may deter SRM. Unattributable attacks are likely, and mandate use of widely-available weapons. Risks from unsophisticated weapons are therefore higher. An extended supply chain is more vulnerable than a secure airbase – necessitating supply-chain hardening. Recommendations to improve SRM resilience include heterogeneous operations from diverse, secure, well-stocked bases (possibly ocean islands or aircraft carriers); and avoidance of single-point-of-failure risks (e.g. balloons). A distributed, civilian-operated system offers an alternative strategy. A multilateral, consensual SRM approach reduces likely attack triggers.
关键词: security geoengineering solar radiation ma-nagement SRM
Andrew LOCKLEY
《工程管理前沿(英文)》 2019年 第6卷 第4期 页码 551-556 doi: 10.1007/s42524-019-0055-y
关键词: geoengineering Solar Radiation Management governance decentralised
标题 作者 时间 类型 操作
A building unit decomposition model for energy leakage by infrared thermography image analysis
Yan SU, Fangjun HONG, Lianjie SHU
期刊论文
Effects of radiation and heat source/sink on unsteady MHD boundary layer flow and heat transfer over
Krishnendu Bhattacharyya
期刊论文
Analysis of the radiation heat transfer process of phase change for a liquid droplet radiator in space
Jinying YIN, Linhua LIU
期刊论文
Analysis of radiation heat transfer and temperature distributions of solar thermochemical reactor for
Bachirou GUENE LOUGOU, Yong SHUAI, Xiang CHEN, Yuan YUAN, Heping TAN, Huang XING
期刊论文
Performance improvement of a pulse tube cryocooler with a single compressor through cascade utilization of cold energy
Xuming LIU, Xiafan XU, Biao YANG, Xiaotong XI, Liubiao CHEN, Junjie WANG, Yuan ZHOU
期刊论文
Numerical study of conduction and radiation heat losses from vacuum annulus in parabolic trough receivers
Dongqiang LEI, Yucong REN, Zhifeng WANG
期刊论文
Effects of leakage and friction on the miniaturization of a Wankel compressor
Yilin ZHANG, Wen WANG
期刊论文
Long-term settlement behavior of ground around shield tunnel due to leakage of water in soft deposit
Huaina WU, Yeshuang XU, Shui-long SHEN, Jin-chun CHAI
期刊论文