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Framework based on building information modeling, mixed reality, and a cloud platform to support information flow in facility management

Berardo NATICCHIA, Alessandra CORNELI, Alessandro CARBONARI

《工程管理前沿（英文）》 2020年第7卷第1期页码 131-141 doi: 10.1007/s42524-019-0071-y

摘要： The quality of information flow management has a remarkable effect on the entire life cycle of buildings. Manual retrieval of technical specifications and features of building components and their performance assessment leads to increased cost and time and efficiency reduction, especially during the facility management (FM) stage. The introduction of building information modeling (BIM) in the construction industry can provide a valuable means of improving the organization and exchange of information. BIM tools integrate multiple levels of information within a single digital model of a building. Nevertheless, the support given by BIM to FM is far from being fully effective. Technicians can benefit from real-time communication with the data repository whenever the need for gathering contextual information and/or updating any data in the digital model arises. The framework proposed in this study aims to develop a system that supports on-site operations. Information requirements have been determined from the analyses of procedures that are usually implemented in the building life cycle. These studies set the standard for the development of a digital model of a building, which will be shared among various actors in charge of FM and accessed via a cloud platform. Moreover, mixed reality is proposed to support specific information that is relevant to geometric features and procedures to be followed by operators. This article presents three use-cases supported by the proposed framework. In addition, this research article describes the first proof of concept regarding real-time support for FM.

关键词： information flow management BIM mixed reality common data environment facility management

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Advances in some common chronic liver diseases

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《医学前沿（英文）》 2014年第8卷第2期页码 127-128 doi: 10.1007/s11684-014-0341-3

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SHIFTING TO A RECOMMENDED DIETARY PATTERN COULD PROMOTE SUSTAINABLE DEVELOPMENT OF THE ENVIRONMENT AND

《农业科学与工程前沿（英文）》 2023年第10卷第1期页码 73-82 doi: 10.15302/J-FASE-2023489

摘要：

● Shifting from the existing dietary patterns to the alternative recommended dietary pattern could enhance the sustainable development of environment and human health.

关键词： CHNS data cluster analysis dietary patterns sustainable development

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我国生态环境大数据发展现状与展望

王运涛,王国强,王桥,张庆竹

《中国工程科学》 2022年第24卷第5期页码 56-62 doi: 10.15302/J-SSCAE-2022.05.021

摘要：

生态环境大数据可以通过提升生态环境治理体系和治理能力现代化来进一步支撑生态文明和美丽中国建设，然而我国生态环境大数据应用还存在思路与技术瓶颈，导致实施、落地困难。面向“十四五”生态环境保护对生态环境大数据的迫切需求，本文总结了我国生态环境大数据的发展现状，分别从机制建设、技术研发及业务支撑三方面分析我国生态环境大数据发展存在的问题，从生态环境状况智能感知与问题识别、演变规律及驱动机制挖掘、环境污染与生态系统受损溯源分析、情景模拟与预测评估、风险预警与应急决策、工作监督与绩效评价等六个方面指出生态环境大数据发展的重点方向，围绕管理机制体制、数据资源意识、技术研发与示范、资金投入与人才培养分别提出我国生态环境大数据发展对策建议，为“十四五”生态环境大数据高质量发展提供支撑。

关键词：生态环境；大数据；协同机制；资源意识

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肿瘤临床大数据管理系统设计与应用

马麟,包晨露,李青,吴静依,潘虹安,李鹏飞,张路霞,詹启敏

《中国工程科学》 2022年第24卷第6期页码 127-136 doi: 10.15302/J-SSCAE-2022.06.011

摘要：

肿瘤是人类生命健康的重要威胁，随着我国医疗行业信息化的发展，医疗机构积累了大量的肿瘤临床数据，但因数据标准不统一、治理难度大等原因制约了数据价值的充分挖掘；应用人工智能（AI）等前沿信息技术建设肿瘤临床大数据管理系统，有助于肿瘤临床数据的深入应用、临床诊疗管理质量与效率提升。本文剖析了我国肿瘤临床数据治理与应用面临的问题及挑战，研判了肿瘤临床大数据管理体系的应用价值；针对肿瘤临床数据多来源、多模态的复杂特性，探索了AI 技术应用于肿瘤临床大数据管理与科研的机制及路径；设计了包括肿瘤通用数据模型构建、临床数据采集与安全管理、标准化结构化治理、分析与建模应用、数据质量管理在内的全流程解决方案，阐述了相应系统的建设框架与技术体系；以某三甲医院肺癌临床大数据平台为案例，展示了所提方案在临床实践中的可行性及应用价值。相关研究可为丰富我国肿瘤临床大数据管理系统的建设实践、探讨领域未来重点研究方向提供参考和启示。

关键词：临床大数据；管理系统；肿瘤；人工智能；通用数据模型；自然语言处理

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Top-geoherbs of traditional Chinese medicine: common trait, quality characteristics and formation

Luqi Huang, Lanping Guo, Chaoyi Ma, Wei Gao, Qingjun Yuan

《医学前沿（英文）》 2011年第5卷第2期页码 185-194 doi: 10.1007/s11684-011-0141-y

摘要： Top-geoherbs used in China are always featured with high qualities, and they grow in specified areas with specific environment. Recently, researches on top-geoherbs have attracted increasing attention in China and other countries. In order to have a thorough knowledge of top-geoherbs, this article reviews the concept, historical evolution, common trait and quality characteristics of top-geoherbs, and explains the forming mechanism including genetic mechanism and environmental mechanism. In addition, it introduces the influence of human factors on the quality of top-geoherbs. Finally, it proposes some problems that should be paid attention to in the researches on top-geoherbs.

关键词： top-geoherbs common trait quality characteristics formation biological mechanism

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AGCD: a robust periodicity analysis method based on approximate greatest common divisor

Juan YU,Pei-zhong LU

《信息与电子工程前沿（英文）》 2015年第16卷第6期页码 466-473 doi: 10.1631/FITEE.1400345

摘要： Periodicity is one of the most common phenomena in the physical world. The problem of periodicity analysis (or period detection) is a research topic in several areas, such as signal processing and data mining. However, period detection is a very challenging problem, due to the sparsity and noisiness of observational datasets of periodic events. This paper focuses on the problem of period detection from sparse and noisy observational datasets. To solve the problem, a novel method based on the approximate greatest common divisor (AGCD) is proposed. The proposed method is robust to sparseness and noise, and is efficient. Moreover, unlike most existing methods, it does not need prior knowledge of the rough range of the period. To evaluate the accuracy and efficiency of the proposed method, comprehensive experiments on synthetic data are conducted. Experimental results show that our method can yield highly accurate results with small datasets, is more robust to sparseness and noise, and is less sensitive to the magnitude of period than compared methods.

关键词： Periodicity analysis Period detection Sparsity Noise Approximate greatest common divisor (AGCD)

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多式联运联接共性关键技术体系构建研究

张玉召,李海军,张文豪 ,杨建铃

《中国工程科学》 2023年第25卷第6期页码 212-224 doi: 10.15302/J-SSCAE-2023.06.015

摘要：

公路、铁路、水路等货物运输方式的高效衔接是多式联运发展的核心，多式联运联接共性关键技术是实现不同货物运输方式衔接的基础，构建多式联运联接共性关键技术体系有助于推动多式联运高质量发展。本文在分析国内外多式联运发展现状的基础上，剖析了我国多式联运发展的瓶颈问题及技术突破点，提出了多式联运联接共性关键技术体系构建思路，搭建了涵盖基础网络、载运工具、数据信息、运输组织、标准规范、枢纽布局等六大模块的技术体系。结合我国实际，提出了我国多式联运技术的发展建议：做好顶层设计，为多式联运联接技术发展提供引领；加快数字化建设进程，为多式联运联接打牢技术底座；推进标准体系建设，为多式联运联接技术发展破除尺度壁垒；制定联运设施衔接的支持政策，为多式联运联接技术发展提供资金保障；加强协调机制建设，为多式联运联接打通管理屏障。

关键词：多式联运联接；基础网络；数据信息；标准规范；枢纽布局

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Influence of cetane number improver on performance and emissions of a common-rail diesel engine fueled

Wu YU, Gen CHEN, Zuohua HUANG

《能源前沿（英文）》 2011年第5卷第4期页码 412-418 doi: 10.1007/s11708-011-0163-9

摘要： In this paper, the effect of cetane number (CN) improver on performance and emissions, including particulate number concentration and size distribution, of a turbocharged, common-rail diesel engine fueled with biodiesel-methanol were studied. Two volume fractions (0.3% and 0.6%) of CN improver were added to BM30 (30% of methanol in the biodiesel-methanol blend) in the experiment. The results show that, compared with those of biodiesel-methanol blend, the peak value of cylinder pressure increases, the second peak of heat release rate decreases, the start of second heat release are advanced, and the fuel economy and thermal efficiency are improved when CN improver is added to biodiesel-methanol blend. Besides, CO and HC emissions decrease, NO emission varies little and smoke emissions increase slightly. Moreover, exhaust particles of BM30 mainly distribute in nano-size range. Furthermore, particle number concentration decreases and peak of size distribution profile shifts toward large size direction.

关键词： biodiesel methanol common-rail (CR) diesel engine cetane number (CN) improver

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Optimization of urban bus operation frequency under common route condition with rail transit

Bin YU, Sijia REN, Enze WU, Yifan ZHOU, Yunpeng WANG

《工程管理前沿（英文）》 2017年第4卷第4期页码 451-462 doi: 10.15302/J-FEM-2017036

摘要： The overlap of bus and rail transit routes is common in China. This overlap provides passengers multiple choices for one trip. However, the availability of multiple options would cause uncertainty in the travel distribution of passengers. Given that buses and rail transits are becoming increasingly common, this paper aims to present the overlapped operation condition of bus and rail transit using a bi-level model from the perspective of bus operators. Frequency optimization model is established in the upper-level model. A heuristic algorithm called shuffled complex evolution (SCE-UA) method is used to solve the established frequency optimization model, and three other heuristic methods are compared with SCE-UA. A lower-level Logit model based on Agent simulation is set for traffic mode split. Data on the transit system in Dalian city are chosen as an example to test the feasibility of the model and the algorithm. Results show that as the overlapped optimization of bus route and rail transit routes changed primary bus frequency, the use of SCE-UA to solve such problems has evident advantages and feasibility; furthermore, changed bus frequency would improve bus operations.

关键词： common route bus operation frequency bi-level model Agent simulation SCE-UA algorithm

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Effects of nano-silicon and common silicon on lead uptake and translocation in two rice cultivars

Jianguo LIU,Hui CAI,Congcong MEI,Mingxin WANG

《环境科学与工程前沿（英文）》 2015年第9卷第5期页码 905-911 doi: 10.1007/s11783-015-0786-x

摘要： The current study investigated the effects of nano-silicon (Si) and common Si on lead (Pb) toxicity, uptake, translocation, and accumulation in the rice cultivars Yangdao 6 and Yu 44 grown in soil containing two different Pb levels (500 mg·kg and 1000 mg·kg ). The results showed that Si application alleviated the toxic effects of Pb on rice growth. Under soil Pb treatments of 500 and 1000 mg·kg , the biomasses of plants supplied with common Si and nano-Si were 1.8%–5.2% and 3.3%–11.8% higher, respectively, than those of plants with no Si supply (control). Compared to the control, Pb concentrations in rice shoots supplied with common Si and nano-Si were reduced by 14.3%–31.4% and 27.6%–54.0%, respectively. Pb concentrations in rice grains treated with common Si and nano-Si decreased by 21.3%–40.9% and 38.6%–64.8%, respectively. Pb translocation factors (TFs) from roots to shoots decreased by 15.0%–29.3% and 25.6%–50.8%, respectively. The TFs from shoots to grains reduced by 8.3%–13.7% and 15.3%–21.1%, respectively, after Si application. The magnitudes of the effects observed on plants decreased in the following order: nano-Si treatment>common Si treatment and high-grain-Pb-accumulating cultivar (Yangdao 6)>low-grain-Pb-accumulating cultivar (Yu 44) and heavy Pb stress (1000 mg·kg )>moderate Pb stress (500 mg·kg )>no Pb treatment. The results of the study indicate that nano-Si is more efficient than common Si in ameliorating the toxic effects of Pb on rice growth, preventing Pb transfer from rice roots to aboveground parts, and blocking Pb accumulation in rice grains, especially in high-Pb-accumulating rice cultivars and in heavily Pb-polluted soils.

关键词： silicon (Si) lead (Pb) rice (Oryza sativa L.) toxicity accumulation

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炼油和石化行业的智能制造

袁志宏, 覃伟中, 赵劲松

《工程（英文）》 2017年第3卷第2期页码 179-182 doi: 10.1016/J.ENG.2017.02.012

摘要：

智能制造将把炼油及石化行业转化成为一个相互关联的、信息驱动的行业链。通过应用实时和高位值支持系统，智能制造能够实现协调运作、绩效导向的制造企业，该企业可迅速回应客户需求，并且将能源和材料的消耗最小化。同时，智能制造还能从根本上改善企业的可持续发展能力、生产力、创新力和经济竞争力。本文展示了石化行业内称为“智能制造”的几个应用案例，如由大数据驱动的催化裂化装置故障检测、对炼油厂现场的规划和调度进行优化等。智能制造在化工和石化领域进一步发展中的关键科技因素和挑战已经明确。

关键词：智能制造石油化工数据/ 信息驱动环境

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Dibutyl phthalate adsorption characteristics using three common substrates in aqueous solutions

Tiancui Li, Yaocheng Fan, Deshou Cun, Yanran Dai, Wei Liang

《环境科学与工程前沿（英文）》 2020年第14卷第2期 doi: 10.1007/s11783-019-1205-5

摘要： • DBP adsorption was tested using three kinds of substrates in constructed wetlands. • The DBP adsorption capacity followed the order: steel slag>gravel>shell sand. • High temperatures increased the DBP adsorption capacity in the substrates. • DOM consistently inhibited the DBP adsorption onto steel slag and gravel. In recent years, the presence and adverse impacts of phthalic acid esters in aquatic environments have gained increasing attention. This work investigated the adsorption behavior of a typical phthalic acid ester, dibutyl phthalate (DBP), onto steel slag, gravel, and shell sand (substrates commonly used in constructed wetlands). The influence of dissolved organic matter (DOM) on DBP adsorption was investigated using humic acid as a proxy for DOM. The results demonstrated that the adsorption of DBP to three substrates reached equilibrium within 96 h, and the adsorption kinetics were well fitted by a pseudo-second-order model. The DBP adsorption isotherms were best fitted by the Langmuir adsorption model. The DBP adsorption capacity decreased in the order of steel slag>gravel>shell sand, with values of 656 mg/kg, 598 mg/kg, and 6.62 mg/kg at 25°C, respectively. DBP adsorbed to the surface of all substrates in a monolayer via an endothermic process. The DBP adsorption capacities of steel slag and gravel decreased as the DOM content increased. The DBP adsorption mechanisms to steel slag and gravel mainly involved the surface coordination of DBP with –OH or –COOH groups and electrostatic interactions. The results of this work suggest that steel slag and gravel may be ideal substrates for use in constructed wetlands to treat wastewater polluted with DBP.

关键词： Adsorption Dibutyl phthalate (DBP) Dissolved organic matter Substrates

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Agriculture Green Development in China and the UK: common objectives and converging policy pathways

Yuelai LU, David NORSE, David POWLSON

《农业科学与工程前沿（英文）》 2020年第7卷第1期页码 98-105 doi: 10.15302/J-FASE-2019298

摘要：

This paper has three aims. First, to examine how the negative environmental consequences of intensive agriculture have driven China and the UK to shift away from narrowly focused farm output policies and adopt more holistic green development pathways. Second, to explore the policy objectives they have in common. Third, to assess the numerous opportunities for joint research and knowledge sharing through the Sustainable Agriculture Innovation Network and other existing institutional mechanisms. The intensification of agricultural production in the UK started several decades earlier than in China as did the negative environmental consequences of the farm practices. However, their strategies and policies for sustainable intensification and green development have much in common. These are set out in two main documents: the Chinese State Council guidelines for green agriculture and the UK Department for Environment, Food and Rural Affairs 25 Year Environment Plan. There are substantial mutual advantages from greater collaboration on problem identification and monitoring; the development of appropriate technological and management responses and the formulation of sound policies. To achieve this potential, it is recommended that further thought be given to how best to bring together all of the key stakeholders along the whole food chain.

关键词： Agriculture Green Development China policy UK

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Application of MoS in the space environment: a review

《机械工程前沿（英文）》 2023年第18卷第3期 doi: 10.1007/s11465-023-0755-1

摘要： A considerable portion of space mechanism failures are related to space tribological problems. Cold welding in high vacuum; surface erosion and collision damage caused by various radiations, high temperature oxidation under atomic oxygen (AO) bombardment; and thermal stress caused by temperature alternation all alter the physical, chemical, and friction properties of materials. In particular, the space vibration caused by alternating temperatures and microgravity environments can alter the motion of the contact body, further affecting its friction properties. Improving the friction properties of contact surfaces in the space environment is an important way to extend the service life of spacecraft. Traditional lubricants can no longer meet the lubrication requirements of the space environment. This study describes the characteristics of the space environment and the applications of solid lubricants. The friction properties of MoS₂, a solid lubricant widely used in space, are discussed. The synergistic lubrication of MoS₂ with surface textures or metals is presented. Advances in research on the friction properties of collision sliding contacts in the space environment are reviewed. The combination of MoS₂ and soft metals with surface textures is introduced to reduce the effects of vibration environments on the friction properties of moving parts in space mechanisms. Finally, the challenges and future research interests of MoS₂ films in space tribology are presented.

关键词： MoS₂ soft metal space environment surface texture synergistic effect vibration