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油池火 3

细水雾 3

严重事故 1

临界热流密度 1

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压水堆 1

发现过程 1

可学习性 1

增材制造 1

射流火 1

成藏模式 1

文昌L低阻轻质油田 1

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比特币矿池；可视分析；交易数据；可视推理；金融科技 1

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Haloacetic acids in swimming pool and spa water in the United States and China

Xiaomao WANG,Garcia Leal M I,Xiaolu ZHANG,Hongwei YANG,Yuefeng XIE

《环境科学与工程前沿（英文）》 2014年第8卷第6期页码 820-824 doi: 10.1007/s11783-014-0712-7

摘要： The objective of this study is to investigate the occurrence of haloacetic acids (HAAs), a group of disinfection byproducts, in swimming pool and spa water. The samples were collected from six indoor pools, six outdoor pools and three spas in Pennsylvania, the United States, and from five outdoor pools and nine indoor pools in Beijing, China. Five HAAs (HAA5), including monochloroacetic acid, dichloroacetic acid, trichloroacetic acid, monobromoacetic acid, and dibromoacetic acid were analyzed. Total chlorine, pH and total organic carbon concentration were analyzed as well. Results indicated that the levels of HAA5 in swimming pools and spas in the United States ranged from 70 to 3980 μg·L , with an arithmetic average at 1440 μg·L and a median level at 1150 μg·L . These levels are much higher than the levels reported in chlorinated drinking water and are likely due to organic matters released from swimmers’ bodies. The levels of HAA5 in swimming pools in China ranged from 13 to 332 μg·L , with an arithmetic average at 117 μg·L and a median level at 114 μg·L . The lower HAA levels in swimming pools in China were due to the lower chlorine residuals. Results from this study can help water professionals to better understand the formation and stability of HAAs in chlorinated water and assess risks associated with exposures to HAAs in swimming pools and spas.

关键词： chlorination disinfection byproduct haloacetic acid swimming pool trihalomethane

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Unlocked disinfection by-product formation potential upon exposure of swimming pool water to additional

Alvyn P. Berg, Ting-An Fang, Hao L. Tang

《环境科学与工程前沿（英文）》 2019年第13卷第1期 doi: 10.1007/s11783-019-1098-3

摘要：

• Swimming pool water was studied for DBPs upon exposure to additional stimulants.

• DBP formation could be induced by residual chlorine and extended incubation.

• Urine led to a massive formation of chloroform with additional stimulants.

• Reactions between chlorine and anthropogenic organics were slow and long-lasting.

• Urine control and air ventilation should be on the priority list for pool management.

关键词： Trihalomethanes Haloacetic acids Chloroform Residual chlorine Anthropogenic organics Swimming pool water

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Concentration levels of disinfection by-products in 14 swimming pools of China

Xiaolu ZHANG,Hongwei YANG,Xiaofeng WANG,Yu ZHAO,Xiaomao WANG,Yuefeng XIE

《环境科学与工程前沿（英文）》 2015年第9卷第6期页码 995-1003 doi: 10.1007/s11783-015-0797-7

摘要： Swimming has become a popular exercising and recreational activity in China but little is known about the disinfection by-products (DBPs) concentration levels in the pools. This study was conducted as a survey of the DBPs in China swimming pools, and to establish the correlations between the DBP concentrations and the pool water quality parameters. A total of 14 public indoor and outdoor pools in Beijing were included in the survey. Results showed that the median concentrations for total trihalomethanes (TTHM), nine haloacetic acids (HAA9), chloral hydrate (CH), four haloacetonitriles (HAN4), 1,1-dichloropropanone, 1,1,1-trichloropropanone and trichloronitromethane were 33.8, 109.1, 30.1, 3.2, 0.3, 0.6 µg?L and below detection limit, respectively. The TTHM and HAA9 levels were in the same magnitude of that in many regions of the world. The levels of CH and nitrogenous DBPs were greatly higher than and were comparable to that in typical drinking water, respectively. Disinfection by chlorine dioxide or trichloroisocyanuric acid could substantially lower the DBP levels. The outdoor pools had higher TTHM and HAA9 levels, but lower trihaloacetic acids (THAA) levels than the indoor pools. The TTHM and HAA9 concentrations could be moderately correlated with the free chlorine and total chlorine residuals but not with the total organic carbon (TOC) contents. When the DBP concentration levels from other survey studies were also included for statistical analysis, a good correlation could be established between the TTHM levels and the TOC concentration. The influence of chlorine residual on DBP levels could also be significant.

关键词： disinfection by-products (DBPs) swimming pool correlation total organic carbon (TOC) chlorine residual bather load

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Research on swimming by undulatory long dorsal fin propulsion

WANG Guangming, SHEN Lincheng, WU Yonghui

《机械工程前沿（英文）》 2007年第2卷第1期页码 77-81 doi: 10.1007/s11465-007-0013-y

摘要： The kinematics of steady forward swimming of is described. The geometric features of the body and locomotive characteristic and parameters of the flexible dorsal fin are discussed. On the basis of observation and experimental data, a simplified kinematic model on locomotion of the undulatory long dorsal fin propulsion is promoted. The hydromechanical performances of the undulatory long dorsal fin propeller of are estimated with the large-amplitude elongated-body theory. The hydromechanical efficiency of the undulatory long dorsal fin system ranged from 81.664% to 86.420% over a speed range of 0.728 0.985 length " s. It is suggested that the undulatory long dorsal fin propulsion is an adaptation to swimming with high hydromechanical efficiency.

关键词： locomotive characteristic hydromechanical observation propulsion hydromechanical efficiency

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Demand response based congestion management in a mix of pool and bilateral electricity market model

Ashwani KUMAR, Charan SEKHAR

《能源前沿（英文）》 2012年第6卷第2期页码 164-178 doi: 10.1007/s11708-012-0187-9

摘要： The independent system operator (ISO) is a key element in the deregulated structure with one of the responsibilities of transmission congestion management (CM). The ISO opts market based solutions to manage congestion receiving bids from generation companies (GENCOs) as well as distribution companies (DISCOMs) to reschedule their generation and relocate demand. The nodal prices increases during the congestion hours and the demand response to nodal prices will be an effective tool for the control of congestion. In this paper, demand response-based CM has been proposed for a mix of pool and bilateral electricity market model. The linear bid curves have been considered for demand bids to respond to the congestion in the network. The bilateral demand has been obtained with minimum deviations in their preferred schedule. The impact of flexible alternating current transmission system (FACTS) devices viz static var compensator (SVC) and thyristor controlled series compensator (TCSC) has also been considered for demand management during congestion. Multi-line congestion cases have been considered to study the impact on demand response without and with FACTS devices. The proposed approach has been tested on the IEEE 24 bus test system.

关键词： bid function congestion management (CM) demand response pool+bilateral electricity market static var compensator (SVC) thyristor controlled series compensator (TCSC)

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油池火中细水雾强化火焰现象的研究

陆强,李钙,廖光煊,黄鑫,朱伟

《中国工程科学》 2006年第8卷第7期页码 78-82

摘要：

细水雾与油池火相互作用之初往往会使燃烧剧烈，强化火焰。实验研究与理论分析表明，雾滴在可燃物表面蒸发是造成这种现象的主要原因。通过改变燃料种类、喷头雾特性参数等实验工况发现火焰强化程度主要决定于燃料的挥发性以及雾滴的直径、速度等参数。而在油盆中加水后燃料表面温度降低、火焰功率下降，火焰强化现象随着加水量的增加而逐渐弱化乃至消失，细水雾系统的灭火时间也明显缩短。

关键词：细水雾油池火共沸过压热释放速率

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基于内嵌物理信息深度学习模型的增材制造工艺参数及熔池尺寸预测 Article

赵明志, 韦辉亮, 茅仪铭, 张长东, 刘婷婷, 廖文和

《工程（英文）》 2023年第23卷第4期页码 181-195 doi: 10.1016/j.eng.2022.09.015

摘要：

熔池特征对激光粉末床熔融（PBF）的打印质量有显著影响，打印参数和熔池尺寸的定量预测对LPBF中复杂过程的智能控制至关重要。然而由于高度非线性，打印参数和熔池尺寸的双向预测一直极具挑战。为了解决此问题，本工作融合典型实验、机理模型和深度学习研究激光PBF过程中关键参数和熔池特性的正向和逆向预测。实验提供基础数据，机理模型显著增强数据集，多层感知器（MLP）深度学习模型则根据实验和机理模型构建的数据集预测熔池尺寸和工艺参数。结果表明可以实现熔池尺寸和工艺参数的双向预测，最高预测准确率接近99.9%，平均预测准确率超过90.0%。此外，MLP模型的预测准确率与数据集的特征密切相关，即数据集的可学习性对预测准确率有至关重要的影响。通过机理模型增强数据集后的最高预测精度为97.3%，而仅使用实验数据集时的最高预测精度只有68.3%。MLP模型的预测准确率在很大程度上取决于数据集的质量。研究结果表明使用MLP进行复杂相关性的双向预测对于激光PBF是可行的，本工作为选定智能增材制造的工艺条件和结果提供了一个新颖而实用的框架。

关键词：增材制造熔池模型深度学习可学习性

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An approach to locational marginal price based zonal congestion management in deregulated electricity market

Md SARWAR,Anwar Shahzad SIDDIQUI

《能源前沿（英文）》 2016年第10卷第2期页码 240-248 doi: 10.1007/s11708-016-0404-z

摘要： Congestion of transmission line is a vital issue and its management pose a technical challenge in power system deregulation. Congestion occurs in deregulated electricity market when transmission capacity is not sufficient to simultaneously accommodate all constraints of power transmission through a line. Therefore, to manage congestion, a locational marginal price (LMP) based zonal congestion management approach in a deregulated electricity market has been proposed in this paper. As LMP is an economic indicator and its difference between two buses across a transmission line provides the measure of the degree of congestion, therefore, it is efficiently and reliably used in deregulated electricity market for congestion management. This paper utilizes the difference of LMP across a transmission line to categorize various congestion zones in the system. After the identification of congestion zones, distributed generation is optimally placed in most congestion sensitive zones using LMP difference in order to manage congestion. The performance of the proposed methodology has been tested on the IEEE 14-bus system and IEEE 57-bus system.

关键词： locational marginal price (LMP) distributed generation pool market deregulated electricity market congestion management

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Confinement effects in methanol to olefins catalysed by zeolites: A computational review

German Sastre

《化学科学与工程前沿（英文）》 2016年第10卷第1期页码 76-89 doi: 10.1007/s11705-016-1557-3

摘要： Small pore zeolites, containing 8-rings as the largest, are widely employed as catalysts in the process of methanol-to-olefins (MTO). Reactants and products diffuse with constraints through 8-rings and this is one of the reaction bottlenecks related to zeolite micropore topology. Small pore zeolites and silicon-aluminophosphates(SAPOs) containing cavities, where olefins are mainly formed through the hydrocarbon pool (HP) mechanism, are frequently tested for MTO. Shape selectivity of transition states within the side-chain methylation will be reviewed as this is one of the controlling steps of the MTO process, with particular attention to the role of hexamethylbenzene (HMB) and heptamethylbenzenium cation (HeptaMB ), which are the most tipically detected reaction intermediates, common to the paring and side-chain routes within the HP mechanism. The relative stability of these and other species will be reviewed in terms of confinement effects in different cage-based zeolites. The role of the different alkylating agents, methanol, dimethyl ether (DME), and surface methoxy species (SMS) will also be reviewed from the computational viewpoint.

关键词： small pore zeolites SAPOs methanol-to-olefins hydrocarbon pool mechanism alkylation of polymethylbenzenes

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压水堆熔融物堆内滞留策略：历史回顾与研究展望 Review

马卫民,元一单,Bal Raj Sehgal

《工程（英文）》 2016年第2卷第1期页码 103-111 doi: 10.1016/J.ENG.2016.01.019

摘要：

本文对广泛应用于第三代压水堆的严重事故缓解措施——熔融物堆内滞留(IVR)进行了历史回顾。IVR策略最早源自于第二代反应堆Lovissa VVER-440的改进设计，以应对堆芯熔化事故。随后，IVR策略被应用于许多新设计的反应堆，如西屋的AP1000、韩国的APR1400以及中国的先进压水堆CAP1400和华龙一号。对IVR策略有效性影响最大的因素分别为堆内堆芯熔化进程、熔融物加载于压力容器壁面的热流密度和压力容器外部冷却。对于堆芯熔化进程，过去人们一直仅关注压力容器下腔室内熔池的换热行为。但通过回顾与分析，本文认为堆内的其他现象，如堆芯的降级和迁移、碎片床的形成及其可冷却性以及熔池的动态形成过程等，可能也会对熔池的最终状态及其作用于下封头的热负荷产生影响。通过对相关研究的回顾，本文希望找出IVR策略的研究中有待完善的部分，并据目前发展水平提出未来IVR研究的需求。

关键词：压水堆严重事故熔融物堆内滞留碎片床形成碎片床再熔化熔池形成熔池热工水力学临界热流密度

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SuPoolVisor：矿池监管可视分析系统 Research

Jia-zhi XIA, Yu-hong ZHANG, Hui YE, Ying WANG, Guang JIANG, Ying ZHAO, Cong XIE, Xiao-yan KUI, Sheng-hui LIAO, Wei-ping WANG

《信息与电子工程前沿（英文）》 2020年第21卷第4期页码 507-523 doi: 10.1631/FITEE.1900532

摘要：在过去十年中，以比特币为代表的加密货币充分展示其在支付和货币系统中的巨大优势与潜力。矿池被认为是比特币的来源，也是市场稳定的基石。对矿池的监管可帮助监管机构有效评估比特币的整体健康状况。但是，矿池匿名性和分析海量交易的难度限制了更深入的分析。此外，对多源异构数据直观和全面的监管也是一个挑战。本文设计并实现一个交互式可视分析系统SuPoolVisor，它可对矿池进行可视化监管，并支持使用可视推理对矿池去匿名化。SuPoolVisor支持矿池和地址两个级别的分析。在矿池级别，使用排序的河流图呈现矿池算力随时间演变情况，并在其他两个视图中设计特殊图形以说明矿池的影响范围和矿池成员迁移。在地址级别，使用力导向图和大规模序列视图呈现矿池中的动态地址网络。特别地，这两个视图与Radviz视图的组合，可用于矿池成员去匿名化的迭代可视推理过程，这些视图都提供了用于跨视图分析和标识的交互功能。我们与该领域专家紧密合作完成3个真实案例，并在案例中证明SuPoolVisor的有效性和可用性。

关键词：比特币矿池；可视分析；交易数据；可视推理；金融科技

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舰船细水雾灭火系统研究回顾

陆强,廖光煊,黄鑫,宛田宾

《中国工程科学》 2004年第6卷第9期页码 88-94

摘要：

近十多年来，国际安全领域对细水雾灭火技术的研究方兴未艾，以美英等国海军为代表的西方各国海军对细水雾在舰船尤其是舰船动力机舱的应用进行了大量研究，结果令人振奋。对该领域的研究作了简单的回顾，旨在使国内安全领域的工作者对此有所了解，为我国海军在这方面的研究提供些许借鉴。

关键词：细水雾油池火射流火

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细水雾抑制熄灭障碍物油池火的有效性研究

房玉东,刘江虹,廖光煊,林霖

《中国工程科学》 2006年第8卷第2期页码 75-79

摘要：

传统水喷淋灭火系统很难扑救有障碍物遮挡的火焰。针对障碍物油池火进行了全尺寸细水雾灭火有效性的实验研究，深入了解障碍物存在时细水雾对油池火的抑制熄灭作用，同时研究了障碍物与火焰的相对位置、细水雾的工作压力、雾通量、喷头距火焰垂直距离及水平距离等关键因素对灭火有效性的影响，分析了障碍物存在时细水雾的灭火特性，揭示了实验中某些工况下不能扑灭火焰的原因，为细水雾的实际工程应用提供了科学的参考依据。

关键词：细水雾障碍物油池火灭火有效性

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珠江口盆地西部新近系海相低阻轻质油田的发现

谢玉洪

《中国工程科学》 2011年第13卷第5期页码 16-22

摘要：

以文昌L低阻轻质油田的发现为背景，对其发现过程、油藏特征及成藏模式进行了研究，着重讨论了油-岩对比、浅海相储层新类型、油气输导体系与运聚优势方向、新技术等几个关键问题。研究表明，文昌组浅湖相烃源岩的排油、运油效率高，能够大规模长距离运移；珠江组一段上部发育浅海滩坝储层新类型；盆倾断裂与区域性优质海相储盖组合构成了油气输导体系；东沙构造运动导致的断裂体系构建了深层油气与上部浅海滩坝储层间的桥梁。论文还提出了“垂向运聚、次生构造-岩性”油气成藏模式，并就勘探得到的启示进行了探讨。

关键词：文昌L低阻轻质油田发现过程油藏特征成藏模式琼海凸起