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期刊论文 8

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2020 1

2018 1

2017 2

2011 1

2010 1

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保持电缆 1

干式舞动 1

悬索桥 1

抖振 1

拱桥 1

斜拉桥 1

涡振 1

薄膜衍射光学元件；衍射望远系统；超大口径 1

雨风诱导振动 1

颤振 1

风洞试验 1

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Response of peroxidase and catalase to acid rain stress during seed germination of rice, wheat, and rape

WANG Lihong, HUANG Xiaohua, ZHOU Qing

《环境科学与工程前沿（英文）》 2008年第2卷第3期页码 364-369 doi: 10.1007/s11783-008-0053-5

摘要： Seed germination of plants with various acid-resistance display different responses to acid rain. To understand the reason why such differences occur, the effects of simulated acid rain (pH 2.5–5.0) on the activities of peroxidase (POD) and catalase (CAT) during seed germination of rice (), wheat (), and rape ( var. ) were investigated. Results indicated that the maximum change in activities of CAT and POD by acid rain treatment with different acidity and time in relation to the referent treatment without acid rain, was in the order: rice (28.8%, 31.7%) < wheat (34.7%, 48.3%) < rape (79.3%, 50.0%). The pH level for which the treatment with acid rain did not cause significant difference ( < 0.05) was in the order: rice (3.5) > wheat (4.0) > rape (5.0). Moreover, the change in activity of POD was higher than that of CAT, which showed that POD was more sensitive to acid rain stress than CAT. The difference in the ability of POD and CAT in removing free radicals was one reason why the germination indexes of these three species behaved differently.

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A rain-on-snow mixed flood forecast model and its application

Jian WU, Lan LI,

《结构与土木工程前沿（英文）》 2009年第3卷第4期页码 440-444 doi: 10.1007/s11709-009-0051-0

摘要： Based on summarizing the rule of rainstorm and snowmelt mixed flood, the structure of rain-on-snow runoff-generation is discussed; and critical temperature is used to determine the form of precipitation and snowmelt factor, taking into account rainfall volume of snowmelt. A rain-on-snow flood forecast model is developed by combining LL-Ⅰdistributed hydrology model. The Kalangguer River, an internal river in Xinjiang Autonomous Region, is taken for example. It is indicated that the model has a higher precision of forecasting; its determinacy coefficient is greater than 0.80.

关键词： Xinjiang Autonomous forecasting hydrology temperature rain-on-snow runoff-generation

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Initial impacts of rain gardens’ application on water quality and quantity in combined sewer: field-scale

Isam Alyaseri, Jianpeng Zhou, Susan M. Morgan, Andrew Bartlett

《环境科学与工程前沿（英文）》 2017年第11卷第4期 doi: 10.1007/s11783-017-0988-5

摘要： Green infrastructures such as rain gardens can benefit onsite reduction of stormwater runoff, leading to reduced combined sewer overflows. A pilot project was conducted to evaluate the impact of rain gardens on the water quality and volume reduction of storm runoff from urban streets in a combined sewer area. The study took place in a six-block area on South Grand Boulevard in St. Louis, Missouri. The impact was assessed through a comparison between the pre-construction (2011/2012) and the post-construction (2014) phases. Shortly after the rain gardens were installed, the levels of total suspended solids, chloride, total nitrogen, total phosphorous, zinc, and copper increased. The level of mercury was lower than the detection level in both phases. was the only parameter that showed statistically significant decrease following the installation of rain gardens. The likely reason for initial increase in monitored water quality parameters is that the post-construction sampling began after the rain gardens were constructed but before planting, resulted from soil erosion and wash-out from the mulch. However, the levels of most of water quality parameters decreased in the following time period during the post-construction phase. The study found 76% volume reduction of stormwater runoff following the installation of rain gardens at one of studied sites. Statistical analysis is essential on collected data because of the encountered high variability of measured flows resulted from low flow conditions in studied sewers.

关键词： Rain gardens Bioretention Combined sewer Stormwater quality and quantity

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Effects of heavy rainfall on the composition of airborne bacterial communities

Gwang Il Jang, Chung Yeon Hwang, Byung Cheol Cho

《环境科学与工程前沿（英文）》 2018年第12卷第2期 doi: 10.1007/s11783-018-1008-0

摘要： Wet deposition scavenges particles and particle-associated bacteria from the air column, but the impact of raindrops on various surfaces on Earth causes emission of surface-associated bacteria into the air column. Thus, after rainfall, these two mechanisms are expected to cause changes in airborne bacterial community composition (BCC). In this study, aerosol samples were collected at a suburban site in Seoul, Korea before and after three heavy rainfall events in April, May, and July 2011. BCC was investigated by pyrosequencing the 16S rRNA gene in aerosol samples. Interestingly, the relative abundance of non-spore forming operational taxonomic units (OTUs) was always higher in post-rain aerosol samples. In particular, the absolute and relative abundances of airborne always increased after rainfall, whereas those of airborne , including and , consistently decreased. Marine bacterial sequences, which were temporally important in aerosol samples, also decreased after rainfall events. Further, increases in pathogen-like sequences were often observed in post-rain air samples. Rainfall events seemed to affect airborne BCCs by the combined action of the two mechanisms, with potentially adverse effects on human and plant health.

关键词： Aerosol Bacteria Community composition Pyrosequencing Rain

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Particulate matter and metals partitioning in highway rainfall-runoff

Gaoxiang YING, John J. SANSALONE,

《环境科学与工程前沿（英文）》 2010年第4卷第1期页码 35-46 doi: 10.1007/s11783-010-0009-4

摘要： This study investigated the particulate matter (PM) and metals in highway dry deposition and rainfall-runoff as a function of hydrologic transport and settling on an event basis. Events were differentiated as mass-limited (ML) and flow-limited (FL). Results indicate that unique and separate suspended sediment concentration (SSC) relationships with turbidity occurred for ML and FL events. Sixty minutes of quiescent settling produced a single SSC-turbidity relationship for all events. ML events transport higher proportions of settleable and sediment PM while FL events transported relatively higher suspended PM. For batch clarification with one hour of settling, ML events had generally higher treatment efficiencies compared to FL events for the same settling conditions. Highway dry deposition PM was hetero-disperse and coarse ( = 304 µm). Results indicate that the acidic rainfall is not a significant contributor to metals in runoff but is capable of leaching metals from dry deposition PM into runoff. Partitioning in retained runoff resulted in a particulate-bound €predominance €for €most €metals €except Ca and Mg. While the finer fraction of dry deposition PM (<75µm) generates the highest metal concentrations, the highest metal mass is associated with the coarser fraction (>75µm).

关键词： stormwater particulate matter (PM) turbidity suspended sediment concentration (SSC) unit operations metals dry deposition acid rain

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斜拉索表面处理后的气动性能的风洞实验研究

Hiroshi Katsuchi, Hitoshi Yamada, Ippei Sakaki, Eiichi Okado

《工程（英文）》 2017年第3卷第6期页码 817-822 doi: 10.1016/j.eng.2017.09.001

摘要：

学界对包括风雨激振（RWIV）和干索驰振（DG）在内的斜拉桥拉索的风致振动等的研究已经有相当长的时间。一般来说，我们会应用机械阻尼器或表面处理来抑制振动。特别是已开发出几种表面处理拉索，包括压痕、纵向平行突起、螺旋角和U 形开槽。最近又开发了一种带螺旋突起的新型空气动力学稳定拉索，这种拉索已被证明具有与锯齿状拉索相似的低阻力系数，并且可以防止拉索表面形成水线。在本研究中，应用风洞实验对这种拉索在各种来流角度和突起尺寸下的RWIV稳定性进行了研究。发现对于所有测试风角，螺旋突起拉索对于RWIV 和DG 在空气动力学基础上都能保持稳定，突起尺寸的影响也得到了确认。

关键词：雨风诱导振动干式舞动保持电缆风洞试验

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大跨度桥梁抗风技术挑战与基础研究

项海帆,葛耀君

《中国工程科学》 2011年第13卷第9期页码 8-21

摘要：

以我国30年大跨度桥梁的快速发展为研究背景，对3种大跨度桥梁的抗风技术挑战进行了基础性研究和应用性研究，着重探讨了悬索桥的颤振性能及其控制、斜拉桥风振性能与拉索风雨振控制、拱式桥涡激共振及其控制、特大桥梁风振精细化理论等一系列抗风关键问题。研究结果表明：悬索桥的颤振稳定性跨径上限约为1 500 m，超过甚至接近这一上限时，必须采取措施改善加劲梁的抗风稳定性；千米级大跨度斜拉桥仍具有足够高的颤振临界风速，其主要抗风问题是长拉索的风雨振动；大跨径拱桥除了个别有涡振问题之外，还没有受到结构抗风性能的影响。文章还提出了三维桥梁颤振精确分析的全模态方法、任意斜风作用下桥梁抖振频域分析方法、基于二阶矩理论和首次超越理论的桥梁颤振和抖振可靠性评价方法，揭示了桥梁颤振演化规律、驱动机理和控制原理。

关键词：悬索桥斜拉桥拱桥颤振抖振涡振

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空间衍射望远系统发展现状 Review Article

赵维1,3,4,王新1,刘华‡2,4,陆子凤2,4,卢振武5

《信息与电子工程前沿（英文）》 2020年第21卷第6期页码 809-962 doi: 10.1631/FITEE.1900529

摘要：基底微结构制作的薄膜衍射光学元件具备超轻质量（面密度小于0.1 kg/m2）和宽松表面形状公差（厘米级表面精度需求）两个重要特性，将其作为大口径望远镜的主镜可实现超大口径，超轻量化，同时降低发射成本。本文对国内外基于衍射光学的空间大口径望远系统的研究进展进行归纳和总结。首先阐述衍射望远系统的成像理论与组成结构，然后介绍衍射望远系统研究进展，最后总结衍射技术作为未来高分辨率空间侦查系统的发展趋势，提出我国应着重开展的相关工作。

关键词：薄膜衍射光学元件；衍射望远系统；超大口径

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标题作者时间类型操作

Response of peroxidase and catalase to acid rain stress during seed germination of rice, wheat, and rape

WANG Lihong, HUANG Xiaohua, ZHOU Qing

期刊论文

A rain-on-snow mixed flood forecast model and its application

Jian WU, Lan LI,

期刊论文

Initial impacts of rain gardens’ application on water quality and quantity in combined sewer: field-scale

Isam Alyaseri, Jianpeng Zhou, Susan M. Morgan, Andrew Bartlett

期刊论文